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run code in 300+ PHP versions simultaneously
<?php function foo(){ var_dump(array_key_exists('test', $GLOBALS)); } function bar(){ global $test; var_dump(array_key_exists('test', get_defined_vars())); } foo(); bar(); foo();
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
bool(false) bool(true) bool(true)
preferences:
137.91 ms | 408 KiB | 5 Q