3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ab = {{"23","34"},{"231","341"}}; echo $ab;
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.24
Parse error: syntax error, unexpected '{' in /in/vYSYJ on line 2
Process exited with code 255.
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171.7 ms | 1395 KiB | 61 Q