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run code in 150+ php & hhvm versions
Bugs & Features
<?php function test($var) { $var = 3; debug_zval_dump($var); } $a = 0; debug_zval_dump($a); countRefs($a);
Output for 7.0.0 - 7.1.0
int(0) Fatal error: Uncaught Error: Call to undefined function countRefs() in /in/8WDeN:11 Stack trace: #0 {main} thrown in /in/8WDeN on line 11
Process exited with code 255.
Output for 5.0.0 - 5.6.28
long(0) refcount(2) Fatal error: Call to undefined function countRefs() in /in/8WDeN on line 11
Process exited with code 255.
Output for 4.4.5 - 4.4.9
long(0) refcount(2) Fatal error: Call to undefined function: countrefs() in /in/8WDeN on line 11
Process exited with code 255.
Output for 4.3.2 - 4.4.4
long(0) refcount(2) Fatal error: Call to undefined function: countrefs() in /in/8WDeN on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1
long(0) refcount(2) Fatal error: Call to undefined function: countrefs() in /in/8WDeN on line 11