Welcome to Exakat’s documentation!¶
Contents:
- 1. Introduction
- 2. Exakat features
- 2.1. Features list
- 2.2. 399 analyzers
- 2.3. Compatible with PHP 5.2 to 8.0-dev
- 2.4. Migration guide from 5.2 to 8.0-dev
- 2.5. Modernize your code
- 2.6. Bug fixes that impact the code
- 2.7. appinfo(): the list of PHP features
- 2.8. List of significant PHP directives
- 2.9. Framework and application support
- 2.10. Hierarchy Diagrams
- 2.11. Code visualizations
- 3. Installation
- 3.1. Summary
- 3.2. Requirements
- 3.3. Download Exakat
- 3.4. Quick installation with exakat.phar
- 3.5. Quick installation with OSX
- 3.6. Full installation with Debian/Ubuntu
- 3.7. Quick installation with Debian/Ubuntu
- 3.8. Installation guide with Composer
- 3.9. Using multiple PHP versions
- 3.10. Optional installations
- 3.11. Installation guide with Docker
- 3.12. Installation guide with Vagrant and Ansible
- 4. Upgrading
- 5. Tutorials
- 6. Frequently Asked Questions
- 6.1. Summary
- 6.2. I need special command to get my code
- 6.3. Can I checkout that branch?
- 6.4. Can I clone with my ssh keys?
- 6.5. After init, my project has no code!
- 6.6. The project is too big
- 6.7. Java Out Of Memory Error
- 6.8. How can I run a very large project?
- 6.9. Does exakat runs on Java 8?
- 6.10. Where can I find the report
- 6.11. Can I run exakat on local code?
- 6.12. Can I ignore a dir or a file?
- 6.13. Can I audit only one folder in vendor?
- 6.14. Can I run Exakat with PHP 5?
- 6.15. I get the error ‘The executable ‘ansible-playbook’ Vagrant is trying to run was not found’
- 6.16. Can I run exakat on Windows?
- 6.17. Does exakat send my code to a central server?
- 6.18. “cat: write error: Broken pipe” : is it bad?
- 7. Exakat commands
- 8. Rulesets
- 9. Rules list
- 9.1. Introduction
- 9.2. $HTTP_RAW_POST_DATA Usage
- 9.3. $this Belongs To Classes Or Traits
- 9.4. $this Is Not An Array
- 9.5. $this Is Not For Static Methods
- 9.6. ** For Exponent
- 9.7. ::class
- 9.8. @ Operator
- 9.9. Abstract Away
- 9.10. Abstract Or Implements
- 9.11. Abstract Static Methods
- 9.12. Access Protected Structures
- 9.13. Accessing Private
- 9.14. Add Default Value
- 9.15. Adding Zero
- 9.16. Aliases Usage
- 9.17. All Uppercase Variables
- 9.18. Already Parents Interface
- 9.19. Already Parents Trait
- 9.20. Altering Foreach Without Reference
- 9.21. Alternative Syntax Consistence
- 9.22. Always Anchor Regex
- 9.23. Always Positive Comparison
- 9.24. Always Use Function With array_key_exists()
- 9.25. Ambiguous Array Index
- 9.26. Ambiguous Static
- 9.27. Ambiguous Visibilities
- 9.28. Anonymous Classes
- 9.29. Argument Should Be Typehinted
- 9.30. Array_merge Needs Array Of Arrays
- 9.31. Assert Function Is Reserved
- 9.32. Assign And Compare
- 9.33. Assign Default To Properties
- 9.34. Assign With And
- 9.35. Assigned Twice
- 9.36. Autoappend
- 9.37. Avoid Concat In Loop
- 9.38. Avoid Large Array Assignation
- 9.39. Avoid Optional Properties
- 9.40. Avoid Parenthesis
- 9.41. Avoid Real
- 9.42. Avoid Self In Interface
- 9.43. Avoid Substr() One
- 9.44. Avoid Those Hash Functions
- 9.45. Avoid Using stdClass
- 9.46. Avoid array_push()
- 9.47. Avoid array_unique()
- 9.48. Avoid get_class()
- 9.49. Avoid glob() Usage
- 9.50. Avoid mb_dectect_encoding()
- 9.51. Avoid option arrays in constructors
- 9.52. Avoid set_error_handler $context Argument
- 9.53. Avoid sleep()/usleep()
- 9.54. Bad Constants Names
- 9.55. Bad Typehint Relay
- 9.56. Bail Out Early
- 9.57. Binary Glossary
- 9.58. Bracketless Blocks
- 9.59. Break Outside Loop
- 9.60. Break With 0
- 9.61. Break With Non Integer
- 9.62. Buried Assignation
- 9.63. Cache Variable Outside Loop
- 9.64. Callback Needs Return
- 9.65. Calltime Pass By Reference
- 9.66. Can’t Count Non-Countable
- 9.67. Can’t Extend Final
- 9.68. Can’t Throw Throwable
- 9.69. Cant Implement Traversable
- 9.70. Cant Inherit Abstract Method
- 9.71. Cant Instantiate Class
- 9.72. Cant Use Return Value In Write Context
- 9.73. Case Insensitive Constants
- 9.74. Cast To Boolean
- 9.75. Casting Ternary
- 9.76. Catch Overwrite Variable
- 9.77. Catch Undefined Variable
- 9.78. Check All Types
- 9.79. Check Crypto Key Length
- 9.80. Check JSON
- 9.81. Check On __Call Usage
- 9.82. Child Class Removes Typehint
- 9.83. Class Const With Array
- 9.84. Class Could Be Final
- 9.85. Class Function Confusion
- 9.86. Class Should Be Final By Ocramius
- 9.87. Class Without Parent
- 9.88. Class, Interface Or Trait With Identical Names
- 9.89. Classes Mutually Extending Each Other
- 9.90. Clone With Non-Object
- 9.91. Close Tags
- 9.92. Closure Could Be A Callback
- 9.93. Closure May Use $this
- 9.94. Coalesce And Concat
- 9.95. Coalesce Equal
- 9.96. Common Alternatives
- 9.97. Compact Inexistant Variable
- 9.98. Compare Hash
- 9.99. Compared Comparison
- 9.100. Complex Dynamic Names
- 9.101. Concat And Addition
- 9.102. Concat Empty String
- 9.103. Concrete Visibility
- 9.104. Configure Extract
- 9.105. Const Visibility Usage
- 9.106. Const With Array
- 9.107. Constant Class
- 9.108. Constant Comparison
- 9.109. Constant Scalar Expressions
- 9.110. Constants Created Outside Its Namespace
- 9.111. Constants With Strange Names
- 9.112. Continue Is For Loop
- 9.113. Could Be Abstract Class
- 9.114. Could Be Callable
- 9.115. Could Be Class Constant
- 9.116. Could Be Constant
- 9.117. Could Be Else
- 9.118. Could Be Integer
- 9.119. Could Be Iterable
- 9.120. Could Be Null
- 9.121. Could Be Parent
- 9.122. Could Be Private Class Constant
- 9.123. Could Be Protected Class Constant
- 9.124. Could Be Protected Method
- 9.125. Could Be Protected Property
- 9.126. Could Be Self
- 9.127. Could Be Static
- 9.128. Could Be Static Closure
- 9.129. Could Be String
- 9.130. Could Be Void
- 9.131. Could Make A Function
- 9.132. Could Return Void
- 9.133. Could Use Alias
- 9.134. Could Use Compact
- 9.135. Could Use Short Assignation
- 9.136. Could Use Try
- 9.137. Could Use __DIR__
- 9.138. Could Use array_fill_keys
- 9.139. Could Use array_unique
- 9.140. Could Use self
- 9.141. Could Use str_repeat()
- 9.142. Crc32() Might Be Negative
- 9.143. Cyclic References
- 9.144. Dangling Array References
- 9.145. Deep Definitions
- 9.146. Define With Array
- 9.147. Dependant Abstract Classes
- 9.148. Dependant Trait
- 9.149. Deprecated Functions
- 9.150. Dereferencing String And Arrays
- 9.151. Detect Current Class
- 9.152. Direct Call To __clone()
- 9.153. Direct Injection
- 9.154. Directly Use File
- 9.155. Disconnected Classes
- 9.156. Do In Base
- 9.157. Don’t Be Too Manual
- 9.158. Don’t Change Incomings
- 9.159. Don’t Echo Error
- 9.160. Don’t Loop On Yield
- 9.161. Don’t Read And Write In One Expression
- 9.162. Don’t Send $this In Constructor
- 9.163. Don’t Unset Properties
- 9.164. Dont Change The Blind Var
- 9.165. Dont Collect Void
- 9.166. Dont Compare Typed Boolean
- 9.167. Dont Mix ++
- 9.168. Double Assignation
- 9.169. Double Instructions
- 9.170. Double Object Assignation
- 9.171. Double array_flip()
- 9.172. Drop Else After Return
- 9.173. Drop Substr Last Arg
- 9.174. Duplicate Literal
- 9.175. Dynamic Library Loading
- 9.176. Echo Or Print
- 9.177. Echo With Concat
- 9.178. Ellipsis Usage
- 9.179. Else If Versus Elseif
- 9.180. Empty Blocks
- 9.181. Empty Classes
- 9.182. Empty Function
- 9.183. Empty Instructions
- 9.184. Empty Interfaces
- 9.185. Empty List
- 9.186. Empty Namespace
- 9.187. Empty Slots In Arrays
- 9.188. Empty Traits
- 9.189. Empty Try Catch
- 9.190. Empty With Expression
- 9.191. Encoded Simple Letters
- 9.192. Eval() Usage
- 9.193. Exceeding Typehint
- 9.194. Exception Order
- 9.195. Exit() Usage
- 9.196. Exponent Usage
- 9.197. Failed Substr Comparison
- 9.198. Fetch One Row Format
- 9.199. Filter To add_slashes()
- 9.200. Final Class Usage
- 9.201. Final Methods Usage
- 9.202. Flexible Heredoc
- 9.203. Fn Argument Variable Confusion
- 9.204. For Using Functioncall
- 9.205. Foreach Don’t Change Pointer
- 9.206. Foreach On Object
- 9.207. Foreach Reference Is Not Modified
- 9.208. Foreach With list()
- 9.209. Forgotten Interface
- 9.210. Forgotten Thrown
- 9.211. Forgotten Visibility
- 9.212. Forgotten Whitespace
- 9.213. Fossilized Method
- 9.214. Fully Qualified Constants
- 9.215. Function Subscripting
- 9.216. Function Subscripting, Old Style
- 9.217. Functions Removed In PHP 5.4
- 9.218. Functions Removed In PHP 5.5
- 9.219. Generator Cannot Return
- 9.220. Getting Last Element
- 9.221. Global Inside Loop
- 9.222. Global Usage
- 9.223. Group Use Declaration
- 9.224. Group Use Trailing Comma
- 9.225. Hardcoded Passwords
- 9.226. Hash Algorithms
- 9.227. Hash Algorithms Incompatible With PHP 5.3
- 9.228. Hash Algorithms Incompatible With PHP 5.4/5.5
- 9.229. Hash Algorithms Incompatible With PHP 7.1-
- 9.230. Hash Algorithms Incompatible With PHP 7.4-
- 9.231. Hash Will Use Objects
- 9.232. Heredoc Delimiter
- 9.233. Hexadecimal In String
- 9.234. Hidden Nullable
- 9.235. Hidden Use Expression
- 9.236. Htmlentities Calls
- 9.237. Identical Conditions
- 9.238. Identical Consecutive Expression
- 9.239. Identical On Both Sides
- 9.240. If With Same Conditions
- 9.241. Iffectations
- 9.242. Illegal Name For Method
- 9.243. Implement Is For Interface
- 9.244. Implemented Methods Are Public
- 9.245. Implied If
- 9.246. Implode One Arg
- 9.247. Implode() Arguments Order
- 9.248. Inclusion Wrong Case
- 9.249. Incompatible Signature Methods
- 9.250. Incompatible Signature Methods With Covariance
- 9.251. Incompilable Files
- 9.252. Inconsistent Elseif
- 9.253. Indices Are Int Or String
- 9.254. Indirect Injection
- 9.255. Infinite Recursion
- 9.256. Instantiating Abstract Class
- 9.257. Insufficient Property Typehint
- 9.258. Insufficient Typehint
- 9.259. Integer As Property
- 9.260. Integer Conversion
- 9.261. Interfaces Don’t Ensure Properties
- 9.262. Interfaces Is Not Implemented
- 9.263. Interpolation
- 9.264. Invalid Constant Name
- 9.265. Invalid Octal In String
- 9.266. Invalid Pack Format
- 9.267. Invalid Regex
- 9.268. Is Actually Zero
- 9.269. Is_A() With String
- 9.270. Isset Multiple Arguments
- 9.271. Isset() On The Whole Array
- 9.272. Joining file()
- 9.273. Keep Files Access Restricted
- 9.274. Large Try Block
- 9.275. List Short Syntax
- 9.276. List With Appends
- 9.277. List With Keys
- 9.278. List With Reference
- 9.279. Locally Unused Property
- 9.280. Logical Mistakes
- 9.281. Logical Operators Favorite
- 9.282. Logical Should Use Symbolic Operators
- 9.283. Logical To in_array
- 9.284. Lone Blocks
- 9.285. Long Arguments
- 9.286. Lost References
- 9.287. Magic Visibility
- 9.288. Make Global A Property
- 9.289. Make Magic Concrete
- 9.290. Make One Call With Array
- 9.291. Malformed Octal
- 9.292. Max Level Of Nesting
- 9.293. Mbstring Third Arg
- 9.294. Mbstring Unknown Encoding
- 9.295. Memoize MagicCall
- 9.296. Merge If Then
- 9.297. Method Collision Traits
- 9.298. Method Could Be Private Method
- 9.299. Method Could Be Static
- 9.300. Method Signature Must Be Compatible
- 9.301. Methodcall On New
- 9.302. Methods Without Return
- 9.303. Minus One On Error
- 9.304. Mismatch Properties Typehints
- 9.305. Mismatch Type And Default
- 9.306. Mismatched Default Arguments
- 9.307. Mismatched Ternary Alternatives
- 9.308. Mismatched Typehint
- 9.309. Missing Abstract Method
- 9.310. Missing Cases In Switch
- 9.311. Missing Include
- 9.312. Missing New ?
- 9.313. Missing Parenthesis
- 9.314. Missing Typehint
- 9.315. Mistaken Concatenation
- 9.316. Mixed Concat And Interpolation
- 9.317. Mixed Keys Arrays
- 9.318. Mkdir Default
- 9.319. Modernize Empty With Expression
- 9.320. Multiple Alias Definitions
- 9.321. Multiple Alias Definitions Per File
- 9.322. Multiple Class Declarations
- 9.323. Multiple Classes In One File
- 9.324. Multiple Constant Definition
- 9.325. Multiple Definition Of The Same Argument
- 9.326. Multiple Exceptions Catch()
- 9.327. Multiple Identical Trait Or Interface
- 9.328. Multiple Index Definition
- 9.329. Multiple Type Variable
- 9.330. Multiple Unset()
- 9.331. Multiple Usage Of Same Trait
- 9.332. Multiples Identical Case
- 9.333. Multiply By One
- 9.334. Must Call Parent Constructor
- 9.335. Must Return Methods
- 9.336. Named Regex
- 9.337. Negative Power
- 9.338. Nested Ifthen
- 9.339. Nested Ternary
- 9.340. Nested Ternary Without Parenthesis
- 9.341. Never Used Parameter
- 9.342. Never Used Properties
- 9.343. New Constants In PHP 7.2
- 9.344. New Constants In PHP 7.4
- 9.345. New Functions In PHP 5.4
- 9.346. New Functions In PHP 5.5
- 9.347. New Functions In PHP 5.6
- 9.348. New Functions In PHP 7.0
- 9.349. New Functions In PHP 7.1
- 9.350. New Functions In PHP 7.2
- 9.351. New Functions In PHP 7.3
- 9.352. New Functions In PHP 7.4
- 9.353. New Functions In PHP 8.0
- 9.354. Next Month Trap
- 9.355. No Append On Source
- 9.356. No Boolean As Default
- 9.357. No Choice
- 9.358. No Class As Typehint
- 9.359. No Class In Global
- 9.360. No Count With 0
- 9.361. No Direct Call To Magic Method
- 9.362. No Direct Usage
- 9.363. No ENT_IGNORE
- 9.364. No Empty Regex
- 9.365. No Hardcoded Hash
- 9.366. No Hardcoded Ip
- 9.367. No Hardcoded Path
- 9.368. No Hardcoded Port
- 9.369. No List With String
- 9.370. No Literal For Reference
- 9.371. No Magic With Array
- 9.372. No More Curly Arrays
- 9.373. No Need For Else
- 9.374. No Need For Triple Equal
- 9.375. No Need For get_class()
- 9.376. No Net For Xml Load
- 9.377. No Parenthesis For Language Construct
- 9.378. No Plus One
- 9.379. No Public Access
- 9.380. No Real Comparison
- 9.381. No Reference For Static Property
- 9.382. No Reference For Ternary
- 9.383. No Reference On Left Side
- 9.384. No Return For Generator
- 9.385. No Return Or Throw In Finally
- 9.386. No Return Used
- 9.387. No Self Referencing Constant
- 9.388. No Spread For Hash
- 9.389. No String With Append
- 9.390. No Substr Minus One
- 9.391. No Weak SSL Crypto
- 9.392. No array_merge() In Loops
- 9.393. No get_class() With Null
- 9.394. No isset() With empty()
- 9.395. No mb_substr In Loop
- 9.396. Non Ascii Variables
- 9.397. Non Nullable Getters
- 9.398. Non Static Methods Called In A Static
- 9.399. Non-constant Index In Array
- 9.400. Non-lowercase Keywords
- 9.401. Not A Scalar Type
- 9.402. Not Equal Is Not !==
- 9.403. Not Not
- 9.404. Null On New
- 9.405. Null Or Boolean Arrays
- 9.406. Nullable Without Check
- 9.407. Numeric Literal Separator
- 9.408. Objects Don’t Need References
- 9.409. Old Style Constructor
- 9.410. Old Style __autoload()
- 9.411. One If Is Sufficient
- 9.412. One Letter Functions
- 9.413. One Variable String
- 9.414. Only Variable For Reference
- 9.415. Only Variable Passed By Reference
- 9.416. Only Variable Returned By Reference
- 9.417. Or Die
- 9.418. Order Of Declaration
- 9.419. Overwritten Exceptions
- 9.420. Overwritten Literals
- 9.421. Overwritten Source And Value
- 9.422. PHP 7.0 New Classes
- 9.423. PHP 7.0 New Interfaces
- 9.424. PHP 7.0 Removed Directives
- 9.425. PHP 7.0 Removed Functions
- 9.426. PHP 7.0 Scalar Typehints
- 9.427. PHP 7.1 Microseconds
- 9.428. PHP 7.1 Removed Directives
- 9.429. PHP 7.1 Scalar Typehints
- 9.430. PHP 7.2 Deprecations
- 9.431. PHP 7.2 Object Keyword
- 9.432. PHP 7.2 Removed Functions
- 9.433. PHP 7.2 Scalar Typehints
- 9.434. PHP 7.3 Last Empty Argument
- 9.435. PHP 7.3 Removed Functions
- 9.436. PHP 7.4 Constant Deprecation
- 9.437. PHP 7.4 Removed Directives
- 9.438. PHP 7.4 Removed Functions
- 9.439. PHP 7.4 Reserved Keyword
- 9.440. PHP 74 New Directives
- 9.441. PHP 8.0 Removed Constants
- 9.442. PHP 8.0 Removed Functions
- 9.443. PHP Keywords As Names
- 9.444. PHP5 Indirect Variable Expression
- 9.445. PHP7 Dirname
- 9.446. Parameter Hiding
- 9.447. Parent First
- 9.448. Parent, Static Or Self Outside Class
- 9.449. Parenthesis As Parameter
- 9.450. Pathinfo() Returns May Vary
- 9.451. Php 7 Indirect Expression
- 9.452. Php 7.1 New Class
- 9.453. Php 7.2 New Class
- 9.454. Php 7.4 New Class
- 9.455. Php 8.0 Only TypeHints
- 9.456. Php 8.0 Variable Syntax Tweaks
- 9.457. Php/UseMatch
- 9.458. Php7 Relaxed Keyword
- 9.459. Phpinfo
- 9.460. Possible Alias Confusion
- 9.461. Possible Increment
- 9.462. Possible Infinite Loop
- 9.463. Possible Missing Subpattern
- 9.464. Pre-increment
- 9.465. Prefix And Suffixes With Typehint
- 9.466. Preprocess Arrays
- 9.467. Preprocessable
- 9.468. Print And Die
- 9.469. Printf Number Of Arguments
- 9.470. Processing Collector
- 9.471. Property Could Be Local
- 9.472. Property Could Be Private Property
- 9.473. Property Used In One Method Only
- 9.474. Property Variable Confusion
- 9.475. Queries In Loops
- 9.476. Raised Access Level
- 9.477. Random Without Try
- 9.478. Randomly Sorted Arrays
- 9.479. Redeclared PHP Functions
- 9.480. Redefined Class Constants
- 9.481. Redefined Default
- 9.482. Redefined Private Property
- 9.483. Redefined Property
- 9.484. Reflection Export() Is Deprecated
- 9.485. Regex On Arrays
- 9.486. Register Globals
- 9.487. Relay Function
- 9.488. Repeated Interface
- 9.489. Repeated Regex
- 9.490. Repeated print()
- 9.491. Reserved Keywords In PHP 7
- 9.492. Results May Be Missing
- 9.493. Rethrown Exceptions
- 9.494. Return True False
- 9.495. Return With Parenthesis
- 9.496. Reuse Variable
- 9.497. Safe Curl Options
- 9.498. Safe HTTP Headers
- 9.499. Same Conditions In Condition
- 9.500. Same Variables Foreach
- 9.501. Scalar Are Not Arrays
- 9.502. Scalar Or Object Property
- 9.503. Self Using Trait
- 9.504. Semantic Typing
- 9.505. Session Lazy Write
- 9.506. Set Aside Code
- 9.507. Set Cookie Safe Arguments
- 9.508. Setlocale() Uses Constants
- 9.509. Several Instructions On The Same Line
- 9.510. Short Open Tags
- 9.511. Short Syntax For Arrays
- 9.512. Should Be Single Quote
- 9.513. Should Chain Exception
- 9.514. Should Deep Clone
- 9.515. Should Have Destructor
- 9.516. Should Make Alias
- 9.517. Should Make Ternary
- 9.518. Should Preprocess Chr()
- 9.519. Should Typecast
- 9.520. Should Use Coalesce
- 9.521. Should Use Constants
- 9.522. Should Use Explode Args
- 9.523. Should Use Foreach
- 9.524. Should Use Function
- 9.525. Should Use Local Class
- 9.526. Should Use Math
- 9.527. Should Use Operator
- 9.528. Should Use Prepared Statement
- 9.529. Should Use SetCookie()
- 9.530. Should Use array_column()
- 9.531. Should Use array_filter()
- 9.532. Should Use session_regenerateid()
- 9.533. Should Yield With Key
- 9.534. Signature Trailing Comma
- 9.535. Silently Cast Integer
- 9.536. Similar Integers
- 9.537. Simple Global Variable
- 9.538. Simple Switch
- 9.539. Simplify Regex
- 9.540. Slice Arrays First
- 9.541. Slow Functions
- 9.542. Sqlite3 Requires Single Quotes
- 9.543. Static Global Variables Confusion
- 9.544. Static Loop
- 9.545. Static Methods Called From Object
- 9.546. Static Methods Can’t Contain $this
- 9.547. Strange Name For Constants
- 9.548. Strange Name For Variables
- 9.549. Strict Comparison With Booleans
- 9.550. String Initialization
- 9.551. String May Hold A Variable
- 9.552. Strings With Strange Space
- 9.553. Strpos()-like Comparison
- 9.554. Strtr Arguments
- 9.555. Substr To Trim
- 9.556. Substring First
- 9.557. Suspicious Comparison
- 9.558. Switch Fallthrough
- 9.559. Switch To Switch
- 9.560. Switch With Too Many Default
- 9.561. Switch Without Default
- 9.562. Ternary In Concat
- 9.563. Test Then Cast
- 9.564. Throw Functioncall
- 9.565. Throw In Destruct
- 9.566. Throw Was An Expression
- 9.567. Throws An Assignement
- 9.568. Timestamp Difference
- 9.569. Too Long A Block
- 9.570. Too Many Array Dimensions
- 9.571. Too Many Children
- 9.572. Too Many Dereferencing
- 9.573. Too Many Finds
- 9.574. Too Many Injections
- 9.575. Too Many Local Variables
- 9.576. Too Many Native Calls
- 9.577. Too Many Parameters
- 9.578. Too Much Indented
- 9.579. Trailing Comma In Calls
- 9.580. Trait Not Found
- 9.581. Typed Property Usage
- 9.582. Typehint Must Be Returned
- 9.583. Typehinted References
- 9.584. Unbinding Closures
- 9.585. Uncaught Exceptions
- 9.586. Unchecked Resources
- 9.587. Unconditional Break In Loop
- 9.588. Undefined ::class
- 9.589. Undefined Caught Exceptions
- 9.590. Undefined Class Constants
- 9.591. Undefined Classes
- 9.592. Undefined Constant Name
- 9.593. Undefined Constants
- 9.594. Undefined Functions
- 9.595. Undefined Insteadof
- 9.596. Undefined Interfaces
- 9.597. Undefined Parent
- 9.598. Undefined Properties
- 9.599. Undefined Trait
- 9.600. Undefined Variable
- 9.601. Undefined static:: Or self::
- 9.602. Unicode Escape Partial
- 9.603. Unicode Escape Syntax
- 9.604. Uninited Property
- 9.605. Union Typehint
- 9.606. Unitialized Properties
- 9.607. Unknown Pcre2 Option
- 9.608. Unkown Regex Options
- 9.609. Unpacking Inside Arrays
- 9.610. Unpreprocessed Values
- 9.611. Unreachable Class Constant
- 9.612. Unreachable Code
- 9.613. Unresolved Catch
- 9.614. Unresolved Classes
- 9.615. Unresolved Instanceof
- 9.616. Unresolved Use
- 9.617. Unserialize Second Arg
- 9.618. Unset In Foreach
- 9.619. Unthrown Exception
- 9.620. Unused Arguments
- 9.621. Unused Class Constant
- 9.622. Unused Classes
- 9.623. Unused Constants
- 9.624. Unused Functions
- 9.625. Unused Global
- 9.626. Unused Inherited Variable In Closure
- 9.627. Unused Interfaces
- 9.628. Unused Label
- 9.629. Unused Methods
- 9.630. Unused Private Methods
- 9.631. Unused Private Properties
- 9.632. Unused Protected Methods
- 9.633. Unused Returned Value
- 9.634. Unused Trait In Class
- 9.635. Unused Use
- 9.636. Unusual Case For PHP Functions
- 9.637. Upload Filename Injection
- 9.638. Use === null
- 9.639. Use Array Functions
- 9.640. Use Basename Suffix
- 9.641. Use Case Value
- 9.642. Use Class Operator
- 9.643. Use Const And Functions
- 9.644. Use Constant
- 9.645. Use Constant As Arguments
- 9.646. Use Count Recursive
- 9.647. Use DateTimeImmutable Class
- 9.648. Use Instanceof
- 9.649. Use List With Foreach
- 9.650. Use Lower Case For Parent, Static And Self
- 9.651. Use Named Boolean In Argument Definition
- 9.652. Use Nullable Type
- 9.653. Use PHP Object API
- 9.654. Use PHP7 Encapsed Strings
- 9.655. Use Pathinfo
- 9.656. Use Positive Condition
- 9.657. Use System Tmp
- 9.658. Use The Blind Var
- 9.659. Use Url Query Functions
- 9.660. Use With Fully Qualified Name
- 9.661. Use array_slice()
- 9.662. Use const
- 9.663. Use is_countable
- 9.664. Use json_decode() Options
- 9.665. Use password_hash()
- 9.666. Use pathinfo() Arguments
- 9.667. Use random_int()
- 9.668. Use session_start() Options
- 9.669. Used Once Property
- 9.670. Used Once Variables
- 9.671. Used Once Variables (In Scope)
- 9.672. Useless Abstract Class
- 9.673. Useless Alias
- 9.674. Useless Argument
- 9.675. Useless Brackets
- 9.676. Useless Casting
- 9.677. Useless Catch
- 9.678. Useless Check
- 9.679. Useless Constructor
- 9.680. Useless Default Argument
- 9.681. Useless Final
- 9.682. Useless Global
- 9.683. Useless Instructions
- 9.684. Useless Interfaces
- 9.685. Useless Parenthesis
- 9.686. Useless Referenced Argument
- 9.687. Useless Return
- 9.688. Useless Switch
- 9.689. Useless Type Check
- 9.690. Useless Unset
- 9.691. Uses Default Values
- 9.692. Using $this Outside A Class
- 9.693. Using Deprecated Method
- 9.694. Usort Sorting In PHP 7.0
- 9.695. Var Keyword
- 9.696. Variable Global
- 9.697. Variable Is Not A Condition
- 9.698. Variables With One Letter Names
- 9.699. Weak Typing
- 9.700. Weird Array Index
- 9.701. While(List() = Each())
- 9.702. Written Only Variables
- 9.703. Wrong Access Style to Property
- 9.704. Wrong Argument Type
- 9.705. Wrong Case Namespaces
- 9.706. Wrong Class Name Case
- 9.707. Wrong Function Name Case
- 9.708. Wrong Number Of Arguments
- 9.709. Wrong Optional Parameter
- 9.710. Wrong Parameter Type
- 9.711. Wrong Range Check
- 9.712. Wrong Returned Type
- 9.713. Wrong Type For Native PHP Function
- 9.714. Wrong Type With Call
- 9.715. Wrong Typed Property Init
- 9.716. Wrong Typehinted Name
- 9.717. Wrong fopen() Mode
- 9.718. Yoda Comparison
- 9.719. __DIR__ Then Slash
- 9.720. __debugInfo() Usage
- 9.721. __toString() Throws Exception
- 9.722. array_key_exists() Speedup
- 9.723. array_key_exists() Works On Arrays
- 9.724. array_merge() And Variadic
- 9.725. crypt() Without Salt
- 9.726. curl_version() Has No Argument
- 9.727. error_reporting() With Integers
- 9.728. eval() Without Try
- 9.729. ext/apc
- 9.730. ext/dba
- 9.731. ext/ereg
- 9.732. ext/fdf
- 9.733. ext/mcrypt
- 9.734. ext/mhash
- 9.735. ext/ming
- 9.736. ext/mysql
- 9.737. filter_input() As A Source
- 9.738. fputcsv() In Loops
- 9.739. func_get_arg() Modified
- 9.740. idn_to_ascii() New Default
- 9.741. include_once() Usage
- 9.742. isset() With Constant
- 9.743. list() May Omit Variables
- 9.744. mb_strrpos() Third Argument
- 9.745. mcrypt_create_iv() With Default Values
- 9.746. move_uploaded_file Instead Of copy
- 9.747. openssl_random_pseudo_byte() Second Argument
- 9.748. parse_str() Warning
- 9.749. preg_match_all() Flag
- 9.750. preg_replace With Option e
- 9.751. self, parent, static Outside Class
- 9.752. set_exception_handler() Warning
- 9.753. strip_tags Skips Closed Tag
- 9.754. strpos() Too Much
- 9.755. time() Vs strtotime()
- 9.756. var_dump()… Usage
- 10. Real Code Cases
- 11. Reports
- 12. Configuration
- 13. Extensions
- 14. Custom analysis
- 15. Glossary
- 16. Definitions
- 17. Ideas
- 18. List of contributors
- 19. Annex