3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('first'=>array('11'=>'value')); $integer = 11; $string = '11'; echo "$array['first'][11]"; echo "$array['first']['11']"; echo "$array['first'][$integer]"; echo "$array['first'][$string]";
Output for 5.4.0 - 5.4.15
Parse error: syntax error, unexpected '' (T_ENCAPSED_AND_WHITESPACE), expecting identifier (T_STRING) or variable (T_VARIABLE) or number (T_NUM_STRING) in /in/WAqdN on line 8
Process exited with code 255.
Output for 5.3.0 - 5.3.25
Parse error: syntax error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING in /in/WAqdN on line 8
Process exited with code 255.
preferences:
166.73 ms | 1399 KiB | 49 Q