sanitize_file_name( string $filename )
清理文件名,用破折号替换空白。
Sanitizes a filename, replacing whitespace with dashes.
目录锚点:#说明#参数#返回#源码
删除某些操作系统上文件名中非法的特殊字符,以及在命令行操作时需要特殊转义的特殊字符。将空格和连续虚线替换为单个虚线。从文件名的开头和结尾修剪句点、短划线和下划线。无法保证此函数将返回允许上载的文件名。
参数 | 类型 | 必填 | 说明 |
$filename |
(string) |
必需 |
要清理的文件名。 |
(string)经过清理的文件名。
/**
* Sanitizes a filename, replacing whitespace with dashes.
*
* Removes special characters that are illegal in filenames on certain
* operating systems and special characters requiring special escaping
* to manipulate at the command line. Replaces spaces and consecutive
* dashes with a single dash. Trims period, dash and underscore from beginning
* and end of filename.
*
* @since 2.1.0
*
* @param string $filename The filename to be sanitized
* @return string The sanitized filename
*/
function sanitize_file_name( $filename ) {
$filename_raw = $filename;
$special_chars = array("?", "[", "]", "/", "", "=", "<", "="">", ":", ";", ",", "'", """, "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", chr(0));
/**
* Filter the list of characters to remove from a filename.
*
* @since 2.8.0
*
* @param array $special_chars Characters to remove.
* @param string $filename_raw Filename as it was passed into sanitize_file_name().
*/
$special_chars = apply_filters( 'sanitize_file_name_chars', $special_chars, $filename_raw );
$filename = preg_replace( "#x{00a0}#siu", ' ', $filename );
$filename = str_replace( $special_chars, '', $filename );
$filename = str_replace( array( '%20', '+' ), '-', $filename );
$filename = preg_replace( '/[
-]+/', '-', $filename );
$filename = trim( $filename, '.-_' );
// Split the filename into a base and extension[s]
$parts = explode('.', $filename);
// Return if only one extension
if ( count( $parts ) <= 2="" )="" {="" *="" *="" filter="" a="" sanitized="" filename="" string.="" *="" *="" @since="" 2.8.0="" *="" *="" @param="" string="" $filename="" sanitized="" filename.="" *="" @param="" string="" $filename_raw="" the="" filename="" prior="" to="" sanitization.="" */="" return="" apply_filters(="" 'sanitize_file_name',="" $filename,="" $filename_raw="" );="" }="" process="" multiple="" extensions="" $filename="array_shift($parts);" $extension="array_pop($parts);" $mimes="get_allowed_mime_types();" *="" loop="" over="" any="" intermediate="" extensions.="" postfix="" them="" with="" a="" trailing="" underscore="" *="" if="" they="" are="" a="" 2="" -="" 5="" character="" long="" alpha="" string="" not="" in="" the="" extension="" whitelist.="" */="" foreach="" (="" (array)="" $parts="" as="" $part)="" {="" $filename="" .='.' .="" $part;="" if="" (="" preg_match("/^[a-za-z]{2,5}d?$/",="" $part)="" )="" {="" $allowed="false;" foreach="" (="" $mimes="" as="" $ext_preg=""> $mime_match ) {
$ext_preg = '!^(' . $ext_preg . ')$!i';
if ( preg_match( $ext_preg, $part ) ) {
$allowed = true;
break;
}
}
if ( !$allowed )
$filename .= '_';
}
}
$filename .= '.' . $extension;
/** This filter is documented in wp-includes/formatting.php */
return apply_filters('sanitize_file_name', $filename, $filename_raw);
}
更新版本 |
源码位置 |
使用 |
被使用 |
2.1.0 |
wp-includes/formatting.php:2005 |
3 |
6 |
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