3v4l.org

run code in 300+ PHP versions simultaneously
<?php function var2int($a) { return (int) $a--; $a--; $a++; return (int) $a; } echo var2int("a")."\n"; echo var2int("?")."\n"; echo var2int(5)."\n"; echo var2int(NULL)."\n";
Output for 8.3.0 - 8.3.4
Deprecated: Decrement on non-numeric string has no effect and is deprecated in /in/oGCks on line 5 0 Deprecated: Decrement on non-numeric string has no effect and is deprecated in /in/oGCks on line 5 0 5 Warning: Decrement on type null has no effect, this will change in the next major version of PHP in /in/oGCks on line 5 0
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, 5.6.7 - 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, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17
0 0 5 0

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195.33 ms | 405 KiB | 309 Q