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yasien dot dwieb at gmail dot com ¶

4 years ago

Beware when using array_search to a mix of string and integer where prefixes of keys may collide, as in my case I have encountered the following situation:

Assume you have the following array:
<?php
$arr = [
           1 => 'index 0',
           2 => 'index 1',
           3 => 'index 2',
           '3anothersuffix' => 'index 3'
];

$index1 = array_search('3', array_keys($arr)); // 2
$index2 = array_search('3anothersuffix', array_keys($arr)); //2
?>

$index1 and $index2 will be the same

after using strict type search:

<?php
$index1 = array_search('3', array_keys($arr), true); // false
$index2 = array_search('3anothersuffix', array_keys($arr), true);  //3
?>

it will not find $index1 at all while returning a correct value for $index2;

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