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run code in 150+ php & hhvm versions
Bugs & Features
<?php foreach (array(null, false, 0, '', ' ', 'x', 123, true) as $val) { $x = $val ?: 'fallback'; var_dump($x); }
Output for 5.3.0 - 7.1.0
string(8) "fallback" string(8) "fallback" string(8) "fallback" string(8) "fallback" string(1) " " string(1) "x" int(123) bool(true)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected ':' in /in/hICL3 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected ':' in /in/hICL3 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/hICL3 on line 4
Process exited with code 255.