1.2.799. No Empty String With explode()¶
explode() doesn’t allow empty strings as separator. Until PHP 8.0, it would make a warning, and return false. After that version, it raises a ValueError.
To break a string into individual characters, it is possible to use the array notation on strings, or to use the str_split() function.
<?php
explode('', "a");
?>
1.2.799.1. Suggestions¶
Check for empty strings (or equivalent) before using explode()
Use the array notation to access individual chars
Use str_split() to break the string into an array
1.2.799.2. Specs¶
Short name |
Structures/NoEmptyStringWithExplode |
Rulesets |
|
Exakat since |
2.5.2 |
PHP Version |
All |
Severity |
Minor |
Time To Fix |
Quick (30 mins) |
Changed Behavior |
PHP 8.0 - More |
Precision |
High |
Available in |