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run code in 300+ PHP versions simultaneously
<?php $var = "laruence"; $var_dup = $var; $b =$var; debug_zval_dump($var); $var_ref = &$var;
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
string(8) "laruence" interned
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
string(8) "laruence" refcount(1)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
string(8) "laruence" refcount(4)
preferences:
233.69 ms | 402 KiB | 294 Q