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<?php function retVal() { global $foo; return $foo; } function & retRef() { global $foo; return $foo; } unset($foo, $bar); $foo = 'init'; $bar = retVal(); $bar = 'bar'; var_dump($foo, $bar); unset($foo, $bar); $foo = 'init'; $bar = retRef(); $bar = 'bar'; var_dump($foo, $bar); unset($foo, $bar); $foo = 'init'; $bar = & retVal(); $bar = 'bar'; var_dump($foo, $bar); unset($foo, $bar); $foo = 'init'; $bar = & retRef(); $bar = 'bar'; var_dump($foo, $bar);
Output for git.master, git.master_jit, rfc.property-hooks
string(4) "init" string(3) "bar" string(4) "init" string(3) "bar" Notice: Only variables should be assigned by reference in /in/ARuTT on line 29 string(4) "init" string(3) "bar" string(3) "bar" string(3) "bar"

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