Question

get_temp_dir()

Determine a writable directory for temporary files.

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description

Function’s preference is the return value of sys_get_temp_dir(), followed by your PHP temporary upload directory, followed by WP_CONTENT_DIR, before finally defaulting to /tmp/

In the event that this function does not find a writable location, It may be overridden by the WP_TEMP_DIR constant in your wp-config.php file.

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返回值

(string) Writable temporary directory.

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源代码

File: wp-includes/functions.php

function get_temp_dir() {
	static $temp = '';
	if ( defined('WP_TEMP_DIR') )
		return trailingslashit(WP_TEMP_DIR);

	if ( $temp )
		return trailingslashit( $temp );

	if ( function_exists('sys_get_temp_dir') ) {
		$temp = sys_get_temp_dir();
		if ( @is_dir( $temp ) && wp_is_writable( $temp ) )
			return trailingslashit( $temp );
	}

	$temp = ini_get('upload_tmp_dir');
	if ( @is_dir( $temp ) && wp_is_writable( $temp ) )
		return trailingslashit( $temp );

	$temp = WP_CONTENT_DIR . '/';
	if ( is_dir( $temp ) && wp_is_writable( $temp ) )
		return $temp;

	return '/tmp/';
}

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更新日志

Version	description
2.5.0	Introduced.

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相关函数

Uses

• wp-includes/formatting.php: trailingslashit()
• wp-includes/functions.php: wp_is_writable()

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Used By

• wp-admin/includes/media.php: wp_read_video_metadata()
• wp-admin/includes/media.php: wp_read_audio_metadata()
• wp-admin/includes/file.php: wp_tempnam()
• wp-includes/class-http.php: WP_Http::request()

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User Contributed Notes