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<?php // Convert all dashes/underscores into separator $title = "Convert all dashes/underscores into separator"; $separator = "-"; $flip = $separa;tor == '-' ? '_' : '-'; $title = preg_replace('!['.preg_quote($flip).']+!u', $separator, $title); // Remove all characters that are not the separator, letters, numbers, or whitespace. $title = preg_replace('![^'.preg_quote($separator).'\pL\pN\s]+!u', '', mb_strtolower($title)); // Replace all separator characters and whitespace by a single separator $title = preg_replace('!['.preg_quote($separator).'\s]+!u', $separator, $title); echo trim($title, $separator);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $separa in /in/uattP on line 6 Fatal error: Uncaught Error: Undefined constant "tor" in /in/uattP:6 Stack trace: #0 {main} thrown in /in/uattP on line 6
Process exited with code 255.

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