3v4l.org

run code in 300+ PHP versions simultaneously
<?php function filter_alphanum($string) { $characters = str_split($string); $alphaNumeric = array_filter($characters,"ctype_alnum"); return join($alphaNumeric); } echo filter_alphanum("a!bc!#123 more and more");
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
abc123moreandmore
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: str_split() in /in/fqLVZ on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: str_split() in /in/fqLVZ on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: str_split() in /in/fqLVZ on line 4
preferences:
52.64 ms | 408 KiB | 5 Q