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<?php $arr = array('a', 'b'); foreach ($arr as &$a) { var_dump($a); } debug_zval_dump($arr); debug_zval_dump($a); foreach ($arr as $a) { var_dump($a); } debug_zval_dump($arr); debug_zval_dump($a);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(1) "a" string(1) "b" array(2) refcount(2){ [0]=> reference refcount(1) { string(1) "a" interned } [1]=> reference refcount(2) { string(1) "b" interned } } string(1) "b" interned string(1) "a" string(1) "a" array(2) refcount(2){ [0]=> reference refcount(1) { string(1) "a" interned } [1]=> reference refcount(2) { string(1) "a" interned } } string(1) "a" interned
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
string(1) "a" string(1) "b" array(2) refcount(2){ [0]=> string(1) "a" refcount(1) [1]=> &string(1) "b" refcount(1) } string(1) "b" refcount(1) string(1) "a" string(1) "a" array(2) refcount(2){ [0]=> string(1) "a" refcount(1) [1]=> &string(1) "a" refcount(1) } string(1) "a" refcount(1)
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33
string(1) "a" string(1) "b" array(2) refcount(2){ [0]=> string(1) "a" refcount(2) [1]=> &string(1) "b" refcount(2) } string(1) "b" refcount(3) string(1) "a" string(1) "a" array(2) refcount(2){ [0]=> string(1) "a" refcount(3) [1]=> &string(1) "a" refcount(3) } string(1) "a" refcount(4)
Output for 5.2.1 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
string(1) "a" string(1) "b" array(2) refcount(2){ [0]=> string(1) "a" refcount(1) [1]=> &string(1) "b" refcount(2) } string(1) "b" refcount(1) string(1) "a" string(1) "a" array(2) refcount(2){ [0]=> string(1) "a" refcount(1) [1]=> &string(1) "a" refcount(2) } string(1) "a" refcount(1)
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0
string(1) "a" string(1) "b" array(2) refcount(2){ [0]=> &string(1) "a" refcount(1) [1]=> &string(1) "b" refcount(2) } string(1) "b" refcount(1) string(1) "a" string(1) "a" array(2) refcount(2){ [0]=> string(1) "a" refcount(1) [1]=> &string(1) "a" refcount(2) } string(1) "a" refcount(1)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/Reth9 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/Reth9 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/Reth9 on line 4
Process exited with code 255.
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