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<?php $a = [1,2,3]; $b = &$a; foreach($a as $v) {echo "$v-"; unset($a[1]); echo "$v\n";} var_dump($a); ?>
Output for git.master, git.master_jit, rfc.property-hooks
1-1 2-2 3-3 array(2) { [0]=> int(1) [2]=> int(3) }

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