Welcome to Exakat’s documentation!¶
Contents:
- 1. Introduction
- 2. Exakat features
- 2.1. Features list
- 2.2. 386 analyzers
- 2.3. Compatible with PHP 5.2 to 7.4-dev
- 2.4. Migration guide from 5.2 to 7.4 and 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 OSX
- 3.5. Full installation with Debian/Ubuntu
- 3.6. Quick installation with Debian/Ubuntu
- 3.7. Installation guide with Composer
- 3.8. Using multiple PHP versions
- 3.9. Optional installations
- 3.10. Installation guide with Docker
- 3.11. 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 Or Implements
- 9.10. Abstract Static Methods
- 9.11. Access Protected Structures
- 9.12. Accessing Private
- 9.13. Add Default Value
- 9.14. Adding Zero
- 9.15. Aliases Usage
- 9.16. All Uppercase Variables
- 9.17. Already Parents Interface
- 9.18. Already Parents Trait
- 9.19. Altering Foreach Without Reference
- 9.20. Alternative Syntax Consistence
- 9.21. Always Anchor Regex
- 9.22. Always Positive Comparison
- 9.23. Always Use Function With array_key_exists()
- 9.24. Ambiguous Array Index
- 9.25. Ambiguous Static
- 9.26. Ambiguous Visibilities
- 9.27. Anonymous Classes
- 9.28. Argument Should Be Typehinted
- 9.29. Assert Function Is Reserved
- 9.30. Assign And Compare
- 9.31. Assign Default To Properties
- 9.32. Assign With And
- 9.33. Assigned Twice
- 9.34. Autoappend
- 9.35. Avoid Concat In Loop
- 9.36. Avoid Large Array Assignation
- 9.37. Avoid Optional Properties
- 9.38. Avoid Parenthesis
- 9.39. Avoid Real
- 9.40. Avoid Self In Interface
- 9.41. Avoid Those Hash Functions
- 9.42. Avoid Using stdClass
- 9.43. Avoid array_push()
- 9.44. Avoid array_unique()
- 9.45. Avoid get_class()
- 9.46. Avoid glob() Usage
- 9.47. Avoid mb_dectect_encoding()
- 9.48. Avoid option arrays in constructors
- 9.49. Avoid set_error_handler $context Argument
- 9.50. Avoid sleep()/usleep()
- 9.51. Bad Constants Names
- 9.52. Bail Out Early
- 9.53. Binary Glossary
- 9.54. Bracketless Blocks
- 9.55. Break Outside Loop
- 9.56. Break With 0
- 9.57. Break With Non Integer
- 9.58. Buried Assignation
- 9.59. Cache Variable Outside Loop
- 9.60. Callback Needs Return
- 9.61. Calltime Pass By Reference
- 9.62. Can’t Count Non-Countable
- 9.63. Can’t Extend Final
- 9.64. Can’t Throw Throwable
- 9.65. Cant Implement Traversable
- 9.66. Cant Inherit Abstract Method
- 9.67. Cant Instantiate Class
- 9.68. Cant Use Return Value In Write Context
- 9.69. Case Insensitive Constants
- 9.70. Cast To Boolean
- 9.71. Casting Ternary
- 9.72. Catch Overwrite Variable
- 9.73. Check All Types
- 9.74. Check JSON
- 9.75. Check On __Call Usage
- 9.76. Child Class Removes Typehint
- 9.77. Class Const With Array
- 9.78. Class Could Be Final
- 9.79. Class Function Confusion
- 9.80. Class Should Be Final By Ocramius
- 9.81. Class Without Parent
- 9.82. Class, Interface Or Trait With Identical Names
- 9.83. Classes Mutually Extending Each Other
- 9.84. Clone With Non-Object
- 9.85. Close Tags
- 9.86. Closure Could Be A Callback
- 9.87. Closure May Use $this
- 9.88. Coalesce And Concat
- 9.89. Common Alternatives
- 9.90. Compact Inexistant Variable
- 9.91. Compare Hash
- 9.92. Compared Comparison
- 9.93. Complex Dynamic Names
- 9.94. Concat And Addition
- 9.95. Concat Empty String
- 9.96. Concrete Visibility
- 9.97. Configure Extract
- 9.98. Const Visibility Usage
- 9.99. Const With Array
- 9.100. Constant Class
- 9.101. Constant Comparison
- 9.102. Constant Scalar Expressions
- 9.103. Constants Created Outside Its Namespace
- 9.104. Constants With Strange Names
- 9.105. Continue Is For Loop
- 9.106. Could Be Abstract Class
- 9.107. Could Be Class Constant
- 9.108. Could Be Constant
- 9.109. Could Be Else
- 9.110. Could Be Private Class Constant
- 9.111. Could Be Protected Class Constant
- 9.112. Could Be Protected Method
- 9.113. Could Be Protected Property
- 9.114. Could Be Static
- 9.115. Could Be Static Closure
- 9.116. Could Be Typehinted Callable
- 9.117. Could Make A Function
- 9.118. Could Return Void
- 9.119. Could Type With Array
- 9.120. Could Type With Boolean
- 9.121. Could Type With Int
- 9.122. Could Type With String
- 9.123. Could Typehint
- 9.124. Could Use Alias
- 9.125. Could Use Compact
- 9.126. Could Use Short Assignation
- 9.127. Could Use Trait
- 9.128. Could Use Try
- 9.129. Could Use __DIR__
- 9.130. Could Use array_fill_keys
- 9.131. Could Use array_unique
- 9.132. Could Use self
- 9.133. Could Use str_repeat()
- 9.134. Crc32() Might Be Negative
- 9.135. Dangling Array References
- 9.136. Deep Definitions
- 9.137. Define With Array
- 9.138. Dependant Abstract Classes
- 9.139. Dependant Trait
- 9.140. Deprecated Functions
- 9.141. Dereferencing String And Arrays
- 9.142. Detect Current Class
- 9.143. Direct Call To __clone()
- 9.144. Direct Injection
- 9.145. Directly Use File
- 9.146. Disconnected Classes
- 9.147. Do In Base
- 9.148. Don’t Be Too Manual
- 9.149. Don’t Change Incomings
- 9.150. Don’t Echo Error
- 9.151. Don’t Loop On Yield
- 9.152. Don’t Read And Write In One Expression
- 9.153. Don’t Send $this In Constructor
- 9.154. Don’t Unset Properties
- 9.155. Dont Change The Blind Var
- 9.156. Dont Mix ++
- 9.157. Double Assignation
- 9.158. Double Instructions
- 9.159. Double array_flip()
- 9.160. Drop Else After Return
- 9.161. Drop Substr Last Arg
- 9.162. Duplicate Literal
- 9.163. Dynamic Library Loading
- 9.164. Echo Or Print
- 9.165. Echo With Concat
- 9.166. Ellipsis Usage
- 9.167. Else If Versus Elseif
- 9.168. Empty Blocks
- 9.169. Empty Classes
- 9.170. Empty Function
- 9.171. Empty Instructions
- 9.172. Empty Interfaces
- 9.173. Empty List
- 9.174. Empty Namespace
- 9.175. Empty Slots In Arrays
- 9.176. Empty Traits
- 9.177. Empty Try Catch
- 9.178. Empty With Expression
- 9.179. Encoded Simple Letters
- 9.180. Eval() Usage
- 9.181. Exceeding Typehint
- 9.182. Exception Order
- 9.183. Exit() Usage
- 9.184. Exponent Usage
- 9.185. Failed Substr Comparison
- 9.186. Fetch One Row Format
- 9.187. Filter To add_slashes()
- 9.188. Final Class Usage
- 9.189. Final Methods Usage
- 9.190. Flexible Heredoc
- 9.191. For Using Functioncall
- 9.192. Foreach Don’t Change Pointer
- 9.193. Foreach On Object
- 9.194. Foreach Reference Is Not Modified
- 9.195. Foreach With list()
- 9.196. Forgotten Interface
- 9.197. Forgotten Thrown
- 9.198. Forgotten Visibility
- 9.199. Forgotten Whitespace
- 9.200. Fully Qualified Constants
- 9.201. Function Subscripting
- 9.202. Function Subscripting, Old Style
- 9.203. Functions Removed In PHP 5.4
- 9.204. Functions Removed In PHP 5.5
- 9.205. Functions/BadTypehintRelay
- 9.206. Functions/CouldTypeWithIterable
- 9.207. Generator Cannot Return
- 9.208. Getting Last Element
- 9.209. Global Inside Loop
- 9.210. Global Usage
- 9.211. Group Use Declaration
- 9.212. Group Use Trailing Comma
- 9.213. Hardcoded Passwords
- 9.214. Hash Algorithms
- 9.215. Hash Algorithms Incompatible With PHP 5.3
- 9.216. Hash Algorithms Incompatible With PHP 5.4/5.5
- 9.217. Hash Algorithms Incompatible With PHP 7.1-
- 9.218. Hash Algorithms Incompatible With PHP 7.4-
- 9.219. Hash Will Use Objects
- 9.220. Heredoc Delimiter
- 9.221. Hexadecimal In String
- 9.222. Hidden Use Expression
- 9.223. Htmlentities Calls
- 9.224. Identical Conditions
- 9.225. Identical Consecutive Expression
- 9.226. Identical Methods
- 9.227. Identical On Both Sides
- 9.228. If With Same Conditions
- 9.229. Iffectations
- 9.230. Illegal Name For Method
- 9.231. Implement Is For Interface
- 9.232. Implemented Methods Are Public
- 9.233. Implicit Global
- 9.234. Implied If
- 9.235. Implode One Arg
- 9.236. Inclusion Wrong Case
- 9.237. Incompatible Signature Methods
- 9.238. Incompatible Signature Methods With Covariance
- 9.239. Incompilable Files
- 9.240. Inconsistent Elseif
- 9.241. Indices Are Int Or String
- 9.242. Indirect Injection
- 9.243. Infinite Recursion
- 9.244. Instantiating Abstract Class
- 9.245. Insufficient Property Typehint
- 9.246. Insufficient Typehint
- 9.247. Integer As Property
- 9.248. Integer Conversion
- 9.249. Interfaces Is Not Implemented
- 9.250. Interpolation
- 9.251. Invalid Constant Name
- 9.252. Invalid Octal In String
- 9.253. Invalid Pack Format
- 9.254. Invalid Regex
- 9.255. Is Actually Zero
- 9.256. Is_A() With String
- 9.257. Isset Multiple Arguments
- 9.258. Isset() On The Whole Array
- 9.259. Joining file()
- 9.260. List Short Syntax
- 9.261. List With Appends
- 9.262. List With Keys
- 9.263. List With Reference
- 9.264. Locally Unused Property
- 9.265. Logical Mistakes
- 9.266. Logical Operators Favorite
- 9.267. Logical Should Use Symbolic Operators
- 9.268. Logical To in_array
- 9.269. Lone Blocks
- 9.270. Long Arguments
- 9.271. Lost References
- 9.272. Magic Visibility
- 9.273. Make Global A Property
- 9.274. Make Magic Concrete
- 9.275. Make One Call With Array
- 9.276. Malformed Octal
- 9.277. Max Level Of Nesting
- 9.278. Mbstring Third Arg
- 9.279. Mbstring Unknown Encoding
- 9.280. Memoize MagicCall
- 9.281. Merge If Then
- 9.282. Method Collision Traits
- 9.283. Method Could Be Private Method
- 9.284. Method Could Be Static
- 9.285. Method Signature Must Be Compatible
- 9.286. Methodcall On New
- 9.287. Methods Without Return
- 9.288. Minus One On Error
- 9.289. Mismatch Type And Default
- 9.290. Mismatched Default Arguments
- 9.291. Mismatched Ternary Alternatives
- 9.292. Mismatched Typehint
- 9.293. Missing Cases In Switch
- 9.294. Missing Include
- 9.295. Missing New ?
- 9.296. Missing Parenthesis
- 9.297. Mistaken Concatenation
- 9.298. Mixed Concat And Interpolation
- 9.299. Mixed Keys Arrays
- 9.300. Mkdir Default
- 9.301. Modernize Empty With Expression
- 9.302. Multiple Alias Definitions
- 9.303. Multiple Alias Definitions Per File
- 9.304. Multiple Class Declarations
- 9.305. Multiple Classes In One File
- 9.306. Multiple Constant Definition
- 9.307. Multiple Definition Of The Same Argument
- 9.308. Multiple Exceptions Catch()
- 9.309. Multiple Identical Closure
- 9.310. Multiple Identical Trait Or Interface
- 9.311. Multiple Index Definition
- 9.312. Multiple Type Variable
- 9.313. Multiple Unset()
- 9.314. Multiple Usage Of Same Trait
- 9.315. Multiples Identical Case
- 9.316. Multiply By One
- 9.317. Must Call Parent Constructor
- 9.318. Must Return Methods
- 9.319. Named Regex
- 9.320. Negative Power
- 9.321. Nested Ifthen
- 9.322. Nested Ternary
- 9.323. Nested Ternary Without Parenthesis
- 9.324. Never Used Parameter
- 9.325. Never Used Properties
- 9.326. New Constants In PHP 7.2
- 9.327. New Constants In PHP 7.4
- 9.328. New Functions In PHP 5.4
- 9.329. New Functions In PHP 5.5
- 9.330. New Functions In PHP 5.6
- 9.331. New Functions In PHP 7.0
- 9.332. New Functions In PHP 7.1
- 9.333. New Functions In PHP 7.2
- 9.334. New Functions In PHP 7.3
- 9.335. New Functions In PHP 7.4
- 9.336. Next Month Trap
- 9.337. No Append On Source
- 9.338. No Boolean As Default
- 9.339. No Choice
- 9.340. No Class As Typehint
- 9.341. No Class In Global
- 9.342. No Count With 0
- 9.343. No Direct Call To Magic Method
- 9.344. No Direct Usage
- 9.345. No ENT_IGNORE
- 9.346. No Empty Regex
- 9.347. No Garantee For Property Constant
- 9.348. No Hardcoded Hash
- 9.349. No Hardcoded Ip
- 9.350. No Hardcoded Path
- 9.351. No Hardcoded Port
- 9.352. No List With String
- 9.353. No Literal For Reference
- 9.354. No Magic With Array
- 9.355. No More Curly Arrays
- 9.356. No Need For Else
- 9.357. No Need For get_class()
- 9.358. No Net For Xml Load
- 9.359. No Parenthesis For Language Construct
- 9.360. No Plus One
- 9.361. No Public Access
- 9.362. No Real Comparison
- 9.363. No Reference For Static Property
- 9.364. No Reference For Ternary
- 9.365. No Reference On Left Side
- 9.366. No Return For Generator
- 9.367. No Return Or Throw In Finally
- 9.368. No Return Used
- 9.369. No Self Referencing Constant
- 9.370. No Spread For Hash
- 9.371. No String With Append
- 9.372. No Substr Minus One
- 9.373. No Substr() One
- 9.374. No Weak SSL Crypto
- 9.375. No array_merge() In Loops
- 9.376. No get_class() With Null
- 9.377. No isset() With empty()
- 9.378. Non Ascii Variables
- 9.379. Non Nullable Getters
- 9.380. Non Static Methods Called In A Static
- 9.381. Non-constant Index In Array
- 9.382. Non-lowercase Keywords
- 9.383. Not A Scalar Type
- 9.384. Not Not
- 9.385. Null On New
- 9.386. Null Or Boolean Arrays
- 9.387. Nullable Without Check
- 9.388. Numeric Literal Separator
- 9.389. Objects Don’t Need References
- 9.390. Old Style Constructor
- 9.391. Old Style __autoload()
- 9.392. One If Is Sufficient
- 9.393. One Letter Functions
- 9.394. One Variable String
- 9.395. Only Variable For Reference
- 9.396. Only Variable Passed By Reference
- 9.397. Only Variable Returned By Reference
- 9.398. Or Die
- 9.399. Order Of Declaration
- 9.400. Overwritten Exceptions
- 9.401. Overwritten Literals
- 9.402. Overwritten Source And Value
- 9.403. PHP 7.0 New Classes
- 9.404. PHP 7.0 New Interfaces
- 9.405. PHP 7.0 Removed Directives
- 9.406. PHP 7.0 Removed Functions
- 9.407. PHP 7.0 Scalar Typehints
- 9.408. PHP 7.1 Microseconds
- 9.409. PHP 7.1 Removed Directives
- 9.410. PHP 7.1 Scalar Typehints
- 9.411. PHP 7.2 Deprecations
- 9.412. PHP 7.2 Object Keyword
- 9.413. PHP 7.2 Removed Functions
- 9.414. PHP 7.2 Scalar Typehints
- 9.415. PHP 7.3 Last Empty Argument
- 9.416. PHP 7.3 Removed Functions
- 9.417. PHP 7.4 Constant Deprecation
- 9.418. PHP 7.4 Removed Directives
- 9.419. PHP 7.4 Removed Functions
- 9.420. PHP 7.4 Reserved Keyword
- 9.421. PHP 74 New Directives
- 9.422. PHP 8.0 Removed Constants
- 9.423. PHP 8.0 Removed Functions
- 9.424. PHP Keywords As Names
- 9.425. PHP5 Indirect Variable Expression
- 9.426. PHP7 Dirname
- 9.427. Parameter Hiding
- 9.428. Parent First
- 9.429. Parent, Static Or Self Outside Class
- 9.430. Parenthesis As Parameter
- 9.431. Pathinfo() Returns May Vary
- 9.432. Performances/MbStringInLoop
- 9.433. Php 7 Indirect Expression
- 9.434. Php 7.1 New Class
- 9.435. Php 7.2 New Class
- 9.436. Php 7.4 New Class
- 9.437. Php/Php74mbstrrpos3rdArg
- 9.438. Php7 Relaxed Keyword
- 9.439. Phpinfo
- 9.440. Possible Increment
- 9.441. Possible Infinite Loop
- 9.442. Possible Missing Subpattern
- 9.443. Pre-increment
- 9.444. Preprocess Arrays
- 9.445. Preprocessable
- 9.446. Print And Die
- 9.447. Printf Number Of Arguments
- 9.448. Processing Collector
- 9.449. Property Could Be Local
- 9.450. Property Could Be Private Property
- 9.451. Property Used In One Method Only
- 9.452. Property Variable Confusion
- 9.453. Queries In Loops
- 9.454. Raised Access Level
- 9.455. Random Without Try
- 9.456. Randomly Sorted Arrays
- 9.457. Redeclared PHP Functions
- 9.458. Redefined Class Constants
- 9.459. Redefined Default
- 9.460. Redefined Private Property
- 9.461. Redefined Property
- 9.462. Reflection Export() Is Deprecated
- 9.463. Regex On Arrays
- 9.464. Register Globals
- 9.465. Relay Function
- 9.466. Repeated Interface
- 9.467. Repeated Regex
- 9.468. Repeated print()
- 9.469. Reserved Keywords In PHP 7
- 9.470. Results May Be Missing
- 9.471. Rethrown Exceptions
- 9.472. Return True False
- 9.473. Return With Parenthesis
- 9.474. Reuse Variable
- 9.475. Safe Curl Options
- 9.476. Safe HTTP Headers
- 9.477. Same Conditions In Condition
- 9.478. Same Variables Foreach
- 9.479. Scalar Are Not Arrays
- 9.480. Scalar Or Object Property
- 9.481. Self Using Trait
- 9.482. Session Lazy Write
- 9.483. Set Aside Code
- 9.484. Set Cookie Safe Arguments
- 9.485. Setlocale() Uses Constants
- 9.486. Several Instructions On The Same Line
- 9.487. Short Open Tags
- 9.488. Short Syntax For Arrays
- 9.489. Should Be Single Quote
- 9.490. Should Chain Exception
- 9.491. Should Deep Clone
- 9.492. Should Have Destructor
- 9.493. Should Make Alias
- 9.494. Should Make Ternary
- 9.495. Should Preprocess Chr
- 9.496. Should Typecast
- 9.497. Should Use Coalesce
- 9.498. Should Use Constants
- 9.499. Should Use Explode Args
- 9.500. Should Use Foreach
- 9.501. Should Use Function
- 9.502. Should Use Local Class
- 9.503. Should Use Math
- 9.504. Should Use Operator
- 9.505. Should Use Prepared Statement
- 9.506. Should Use SetCookie()
- 9.507. Should Use array_column()
- 9.508. Should Use array_filter()
- 9.509. Should Use session_regenerateid()
- 9.510. Should Yield With Key
- 9.511. Silently Cast Integer
- 9.512. Similar Integers
- 9.513. Simple Global Variable
- 9.514. Simple Switch
- 9.515. Simplify Regex
- 9.516. Slice Arrays First
- 9.517. Slow Functions
- 9.518. Sqlite3 Requires Single Quotes
- 9.519. Static Loop
- 9.520. Static Methods Called From Object
- 9.521. Static Methods Can’t Contain $this
- 9.522. Strange Name For Constants
- 9.523. Strange Name For Variables
- 9.524. Strict Comparison With Booleans
- 9.525. String Initialization
- 9.526. String May Hold A Variable
- 9.527. Strings With Strange Space
- 9.528. Strpos()-like Comparison
- 9.529. Strtr Arguments
- 9.530. Structures/ImplodeArgsOrder
- 9.531. Substr To Trim
- 9.532. Substring First
- 9.533. Suspicious Comparison
- 9.534. Switch Fallthrough
- 9.535. Switch To Switch
- 9.536. Switch With Too Many Default
- 9.537. Switch Without Default
- 9.538. Ternary In Concat
- 9.539. Test Then Cast
- 9.540. Throw Functioncall
- 9.541. Throw In Destruct
- 9.542. Throws An Assignement
- 9.543. Timestamp Difference
- 9.544. Too Many Array Dimensions
- 9.545. Too Many Children
- 9.546. Too Many Dereferencing
- 9.547. Too Many Finds
- 9.548. Too Many Injections
- 9.549. Too Many Local Variables
- 9.550. Too Many Native Calls
- 9.551. Too Many Parameters
- 9.552. Trailing Comma In Calls
- 9.553. Trait Not Found
- 9.554. Typed Property Usage
- 9.555. Typehint Must Be Returned
- 9.556. Typehinted References
- 9.557. Unbinding Closures
- 9.558. Uncaught Exceptions
- 9.559. Unchecked Resources
- 9.560. Unconditional Break In Loop
- 9.561. Undefined ::class
- 9.562. Undefined Caught Exceptions
- 9.563. Undefined Class Constants
- 9.564. Undefined Classes
- 9.565. Undefined Constants
- 9.566. Undefined Functions
- 9.567. Undefined Insteadof
- 9.568. Undefined Interfaces
- 9.569. Undefined Parent
- 9.570. Undefined Properties
- 9.571. Undefined Trait
- 9.572. Undefined Variable
- 9.573. Undefined static:: Or self::
- 9.574. Unicode Escape Partial
- 9.575. Unicode Escape Syntax
- 9.576. Unitialized Properties
- 9.577. Unknown Pcre2 Option
- 9.578. Unkown Regex Options
- 9.579. Unpacking Inside Arrays
- 9.580. Unpreprocessed Values
- 9.581. Unreachable Class Constant
- 9.582. Unreachable Code
- 9.583. Unresolved Catch
- 9.584. Unresolved Classes
- 9.585. Unresolved Instanceof
- 9.586. Unresolved Use
- 9.587. Unserialize Second Arg
- 9.588. Unset In Foreach
- 9.589. Unthrown Exception
- 9.590. Unused Arguments
- 9.591. Unused Class Constant
- 9.592. Unused Classes
- 9.593. Unused Constants
- 9.594. Unused Functions
- 9.595. Unused Global
- 9.596. Unused Inherited Variable In Closure
- 9.597. Unused Interfaces
- 9.598. Unused Label
- 9.599. Unused Methods
- 9.600. Unused Private Methods
- 9.601. Unused Private Properties
- 9.602. Unused Protected Methods
- 9.603. Unused Returned Value
- 9.604. Unused Use
- 9.605. Unusual Case For PHP Functions
- 9.606. Upload Filename Injection
- 9.607. Use === null
- 9.608. Use Array Functions
- 9.609. Use Basename Suffix
- 9.610. Use Case Value
- 9.611. Use Class Operator
- 9.612. Use Const And Functions
- 9.613. Use Constant
- 9.614. Use Constant As Arguments
- 9.615. Use Count Recursive
- 9.616. Use DateTimeImmutable Class
- 9.617. Use Instanceof
- 9.618. Use List With Foreach
- 9.619. Use Lower Case For Parent, Static And Self
- 9.620. Use Named Boolean In Argument Definition
- 9.621. Use Nullable Type
- 9.622. Use PHP Object API
- 9.623. Use PHP7 Encapsed Strings
- 9.624. Use Pathinfo
- 9.625. Use Positive Condition
- 9.626. Use System Tmp
- 9.627. Use The Blind Var
- 9.628. Use Url Query Functions
- 9.629. Use With Fully Qualified Name
- 9.630. Use array_slice()
- 9.631. Use const
- 9.632. Use is_countable
- 9.633. Use json_decode() Options
- 9.634. Use password_hash()
- 9.635. Use pathinfo() Arguments
- 9.636. Use random_int()
- 9.637. Use session_start() Options
- 9.638. Used Once Property
- 9.639. Used Once Variables
- 9.640. Used Once Variables (In Scope)
- 9.641. Useless Abstract Class
- 9.642. Useless Alias
- 9.643. Useless Argument
- 9.644. Useless Brackets
- 9.645. Useless Casting
- 9.646. Useless Catch
- 9.647. Useless Check
- 9.648. Useless Constructor
- 9.649. Useless Default Argument
- 9.650. Useless Final
- 9.651. Useless Global
- 9.652. Useless Instructions
- 9.653. Useless Interfaces
- 9.654. Useless Parenthesis
- 9.655. Useless Referenced Argument
- 9.656. Useless Return
- 9.657. Useless Switch
- 9.658. Useless Type Check
- 9.659. Useless Unset
- 9.660. Uses Default Values
- 9.661. Using $this Outside A Class
- 9.662. Usort Sorting In PHP 7.0
- 9.663. Var Keyword
- 9.664. Variable Global
- 9.665. Variable Is Not A Condition
- 9.666. Variables With One Letter Names
- 9.667. Weak Typing
- 9.668. Weird Array Index
- 9.669. While(List() = Each())
- 9.670. Written Only Variables
- 9.671. Wrong Access Style to Property
- 9.672. Wrong Case Namespaces
- 9.673. Wrong Class Name Case
- 9.674. Wrong Function Name Case
- 9.675. Wrong Number Of Arguments
- 9.676. Wrong Optional Parameter
- 9.677. Wrong Parameter Type
- 9.678. Wrong Range Check
- 9.679. Wrong Returned Type
- 9.680. Wrong Type With Call
- 9.681. Wrong Typehinted Name
- 9.682. Wrong fopen() Mode
- 9.683. Yoda Comparison
- 9.684. __DIR__ Then Slash
- 9.685. __debugInfo() Usage
- 9.686. __toString() Throws Exception
- 9.687. array_key_exists() Speedup
- 9.688. array_key_exists() Works On Arrays
- 9.689. array_merge() And Variadic
- 9.690. crypt() Without Salt
- 9.691. curl_version() Has No Argument
- 9.692. error_reporting() With Integers
- 9.693. eval() Without Try
- 9.694. ext/apc
- 9.695. ext/dba
- 9.696. ext/ereg
- 9.697. ext/fdf
- 9.698. ext/mcrypt
- 9.699. ext/mhash
- 9.700. ext/ming
- 9.701. ext/mysql
- 9.702. filter_input() As A Source
- 9.703. fputcsv() In Loops
- 9.704. func_get_arg() Modified
- 9.705. idn_to_ascii() New Default
- 9.706. include_once() Usage
- 9.707. isset() With Constant
- 9.708. list() May Omit Variables
- 9.709. mcrypt_create_iv() With Default Values
- 9.710. move_uploaded_file Instead Of copy
- 9.711. openssl_random_pseudo_byte() Second Argument
- 9.712. parse_str() Warning
- 9.713. preg_match_all() Flag
- 9.714. preg_replace With Option e
- 9.715. self, parent, static Outside Class
- 9.716. set_exception_handler() Warning
- 9.717. strip_tags Skips Closed Tag
- 9.718. strpos() Too Much
- 9.719. time() Vs strtotime()
- 9.720. 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