@ 2013-11-16T15:52:59Z <?php
var_dump(preg_match('/^-?\d+$/', '-123'));
var_dump(preg_match('/^-?\d+$/', '123'));
var_dump(ctype_digit(0));
var_dump(ctype_digit("0"));
var_dump(ctype_digit("1"));
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Output for 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.7 int(1)
int(1)
Deprecated: ctype_digit(): Argument of type int will be interpreted as string in the future in /in/M9CAo on line 4
bool(false)
bool(true)
bool(true)
Output for 4.3.0 - 4.3.11 , 4.4.0 - 4.4.9 , 5.0.0 - 5.0.5 , 5.1.0 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 , 5.4.0 - 5.4.45 , 5.5.0 - 5.5.38 , 5.6.0 - 5.6.28 , 7.0.0 - 7.0.20 , 7.1.0 - 7.1.10 , 7.2.0 - 7.2.33 , 7.3.12 - 7.3.33 , 7.4.0 - 7.4.33 , 8.0.0 - 8.0.30 int(1)
int(1)
bool(false)
bool(true)
bool(true)
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210.11 ms | 405 KiB | 355 Q