3v4l.org

run code in 300+ PHP versions simultaneously
<?php $zahl1 = 1; $operator = "+"; $zahl2 = 3; $neuezahl = '$zahl1' . $operator . '$zahl3'; echo $neuezahl; evel($neuezahl),
Output for 5.3.0 - 5.3.26, 5.4.0 - 5.4.17
Parse error: syntax error, unexpected ',' in /in/IHven on line 11
Process exited with code 255.
preferences:
178.17 ms | 1395 KiB | 52 Q