3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function combinaisons($chaine, $prefix = '') { if(strlen($chaine) == strlen($prefix)) { yield $prefix; return; } $caracteres = str_split($chaine, 1); foreach($caracteres as $caractere) { $solutions = combinaisons($chaine, $prefix.$caractere); foreach($solutions as $solution) yield $solution; } } $combinaisons = combinaisons('abc'); foreach($combinaisons as $combinaison) echo $combinaison.'<br />';
Output for 5.5.24 - 7.1.0
aaa<br />aab<br />aac<br />aba<br />abb<br />abc<br />aca<br />acb<br />acc<br />baa<br />bab<br />bac<br />bba<br />bbb<br />bbc<br />bca<br />bcb<br />bcc<br />caa<br />cab<br />cac<br />cba<br />cbb<br />cbc<br />cca<br />ccb<br />ccc<br />
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$prefix' (T_VARIABLE) in /in/ZsPGn on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_VARIABLE in /in/ZsPGn on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_VARIABLE in /in/ZsPGn on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ZsPGn on line 6
Process exited with code 255.