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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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599 | * @return string The sanitized filename |
600 | */ |
601 | function sanitize_file_name( $filename ) { |
602 | $filename_raw = $filename; |
603 | $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}"); |
604 | $special_chars = apply_filters('sanitize_file_name_chars', $special_chars, $filename_raw); |
605 | $filename = str_replace($special_chars, '', $filename); |
606 | $filename = preg_replace('/[\s-]+/', '-', $filename); |
607 | $filename = trim($filename, '.-_'); |
608 | return apply_filters('sanitize_file_name', $filename, $filename_raw); |
609 | } |
610 |
|
611 | /** |
612 | * Sanitize username stripping out unsafe characters. |
613 | * |
614 | * If $strict is true, only alphanumeric characters (as well as _, space, ., -, |
615 | * @) are returned. |
616 | * Removes tags, octets, entities, and if strict is enabled, will remove all |
617 | * non-ASCII characters. After sanitizing, it passes the username, raw username |