3v4l.org

run code in 300+ PHP versions simultaneously
<?php $y = 2; $factor = 3; ($y *= $factor) += 1; print $y;
Output for 7.1.0 - 7.1.13, 7.2.0 - 7.2.1
Parse error: syntax error, unexpected '+=' (T_PLUS_EQUAL) in /in/oKIkl on line 6
Process exited with code 255.
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165.4 ms | 1395 KiB | 23 Q