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run code in 300+ PHP versions simultaneously
<?php $a = 0; $b = 1; echo "foo ", $a^$b, "\n"; echo "a | b\n"; for($i = 0; $i < 4; $i++){ list($a, $b) = str_split(str_pad(decbin($i), 2, 0, STR_PAD_LEFT)); echo "$a | $b | ", $a^$b, "\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
foo 1 a | b 0 | 0 | 0 | 1 |  1 | 0 |  1 | 1 |

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