1.2.597. Invalid Octal In String¶
Any octal sequence inside a string can’t be go 377. Those will be a fatal error at parsing time.
The check is applied to the string, starting with PHP 7.1. In PHP 7.0 and older, those sequences were silently adapted (modulo/% 400).
<?php
// A valid octal in a PHP string
echo "\100"; // @
// Emit a warning in PHP 7.1
//Octal escape sequence overflow \500 is greater than \377
echo "\500"; // @
// Silent conversion
echo "\478"; // 8
?>
See also Integers.
1.2.597.1. Suggestions¶
Use a double slash to avoid the sequence to be an octal sequence
Use a function call, such as decoct() to convert larger number to octal notation
1.2.597.2. Specs¶
Short name |
Type/OctalInString |
Rulesets |
|
Exakat since |
0.9.1 |
PHP Version |
With PHP 7.1 and older |
Severity |
Major |
Time To Fix |
Quick (30 mins) |
Precision |
Very high |
Available in |