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<?php function &foo(&$param) { $param = 42; return $param; } $a = 23; echo "\$a before calling foo(): $a\n"; $b = &foo($a); echo "\$a after the call to foo(): $a\n"; $b = 23; echo "\$a after touching the returned variable: $a\n"; echo "\$b : $b\n";
Output for git.master, git.master_jit, rfc.property-hooks
$a before calling foo(): 23 $a after the call to foo(): 42 $a after touching the returned variable: 23 $b : 23

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