Question

path_is_absolute( string $path )

Test if a give filesystem path is absolute.

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description

For example, ‘/foo/bar’, or ‘c:\windows’.

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参数

$path

(string) (Required) File path.

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返回值

(bool) True if path is absolute, false is not absolute.

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源代码

File: wp-includes/functions.php

function path_is_absolute( $path ) {
	/*
	 * 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;

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

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更新日志

Version	description
2.5.0	Introduced.

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相关函数

Used By

• wp-includes/functions.php: path_join()

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User Contributed Notes