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@ 2021-01-04T14:21:50Z

<?php

var_dump(filter_var('0x', FILTER_VALIDATE_INT, FILTER_FLAG_ALLOW_HEX));
var_dump(filter_var('0X', FILTER_VALIDATE_INT, FILTER_FLAG_ALLOW_HEX));
var_dump(filter_var('', FILTER_VALIDATE_INT, FILTER_FLAG_ALLOW_HEX));
var_dump(filter_var('0', FILTER_VALIDATE_INT, FILTER_FLAG_ALLOW_HEX));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

58.76 ms | 402 KiB | 5 Q