3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3,4,5, "foo" => "bar"]; $a5 = 2233; $b = "foo"; $x = "a"; echo "$a['foo']";
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected '' (T_ENCAPSED_AND_WHITESPACE), expecting identifier (T_STRING) or variable (T_VARIABLE) or number (T_NUM_STRING) in /in/UqUL0 on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/UqUL0 on line 2
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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/UqUL0 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/UqUL0 on line 2
Process exited with code 255.
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224.83 ms | 1395 KiB | 123 Q