3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i=0; $i<10000; $++) { echo "Processing key $i<br>"; }
Output for 5.4.0 - 5.4.21
Parse error: syntax error, unexpected '++' (T_INC), expecting variable (T_VARIABLE) or '$' in /in/JRZjW on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_INC, expecting T_VARIABLE or '$' in /in/JRZjW on line 3
Process exited with code 255.
preferences:
182.83 ms | 1395 KiB | 57 Q