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@ 2021-04-10T12:30:04Z

<?php

$test = ['', 0, null, 'foo'];

foreach ($test as $value)
{
var_dump(filter_var($value, FILTER_UNSAFE_RAW, FILTER_FLAG_EMPTY_STRING_NULL));
}

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
filter_var: documentation ( source)

preferences:dark modelive previewkey bindings

49.69 ms | 1372 KiB | 5 Q