3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "1 $foo[nonexisting] 2", "3 " '".$foo['nonexisting'].'" 4";
Output for 5.4.0 - 5.4.25
Parse error: syntax error, unexpected ''".$foo['' (T_CONSTANT_ENCAPSED_STRING), expecting ',' or ';' in /in/XPuN2 on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting ',' or ';' in /in/XPuN2 on line 3
Process exited with code 255.

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