3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "Original"; $my_array = array("a" => "Cat", "b" => "Dog", "c" => "Horse"); extract($my_array, EXTR_OVERWRITE,'dup'); echo "\$a = $a; \$b = $b; \$c = $c; \$dup_a = $dup_a"; ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $dup_a in /in/cb3ZK on line 7 $a = Cat; $b = Dog; $c = Horse; $dup_a =
Output for 5.0.4 - 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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.25, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: dup_a in /in/cb3ZK on line 7 $a = Cat; $b = Dog; $c = Horse; $dup_a =
Output for 7.3.32 - 7.3.33, 7.4.26
$a = Cat; $b = Dog; $c = Horse; $dup_a =
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: dup_a in /in/cb3ZK on line 7 $a = Cat; $b = Dog; $c = Horse; $dup_a =
preferences:
232.65 ms | 402 KiB | 369 Q