path_is_absolute

函数
path_is_absolute ( $path )
参数
  • (string) $path File path.
    Required:
返回值
  • (bool) True if path is absolute, false is not absolute.
定义位置
相关方法
wp_is_writableantispambotrest_is_booleanwp_list_sortwp_is_stream
引入
2.5.0
弃用
-

path_is_absolute: 这个函数检查一个给定的路径是否是一个绝对路径。它需要一个参数:$path(字符串),表示要检查的路径。

测试一个给定的文件系统路径是否是绝对的。

例如,’/foo/bar’,或’c:windows’。

function path_is_absolute( $path ) {
	/*
	 * Check to see if the path is a stream and check to see if its an actual
	 * path or file as realpath() does not support stream wrappers.
	 */
	if ( wp_is_stream( $path ) && ( is_dir( $path ) || is_file( $path ) ) ) {
		return true;
	}

	/*
	 * This is definitive if true but fails if $path does not exist or contains
	 * a symbolic link.
	 */
	if ( realpath( $path ) === $path ) {
		return true;
	}

	if ( strlen( $path ) === 0 || '.' === $path[0] ) {
		return false;
	}

	// Windows allows absolute paths like this.
	if ( preg_match( '#^[a-zA-Z]:\\#', $path ) ) {
		return true;
	}

	// Normalized Windows paths for local filesystem and network shares (forward slashes).
	if ( preg_match( '#(^[a-zA-Z]+:/|^//[w!@#$%^()-'{}.~]{1,15})#', $path ) ) {
		return true;
	}

	// A path starting with / or  is absolute; anything else is relative.
	return ( '/' === $path[0] || '\' === $path[0] );
}

常见问题

FAQs
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