3v4l.org

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<?php $regEx = "/^[0-9]*$/"; $pass= "Y"; $fail= "N"; $value = 1; $value = 0; $value = "true"; $value = "false"; $value = true; $value = false; //returns N //$value = "hello"; //returns N //$value = 32452345; //returns N if ((preg_match($regEx, $value) && ($value == 1 || $value == 0)) || $value === true || $value === false) { echo $pass; } else{ echo $fail; }
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Y
preferences:
216.85 ms | 406 KiB | 309 Q