chdir 改变目录

发表日期:2021-07-01 08:55:30 | 来源: | | 浏览(877) 分类:目录函数

chdir

(PHP 4, PHP 5, PHP 7, PHP 8)

chdir改变目录

说明

chdir(string $directory): bool

将 PHP 的当前目录改为   directory

参数


  • directory

  • 新的当前目录


返回值

成功时返回 true, 或者在失败时返回 false

错误/异常

Throws an error of level E_WARNING on failure.

范例


示例 #1 chdir() 例子

<?php 
// current directory
echo getcwd() . "\n";
chdir('public_html');
// current directorye
cho getcwd() . "\n";
?>

以上例程的输出类似于:

/home/vincent
/home/vincent/public_html


注释

警告  

If the PHP interpreter has been built with ZTS (Zend Thread Safety) enabled,    any changes to the current directory made through chdir()will be invisible to the operating system. All built-in PHP functions will    still respect the change in current directory; but external library    functions called using FFI will not. You    can tell whether your copy of PHP was built with ZTS enabled usingphp -i or the built-in constantPHP_ZTS.

参见



集速网 copyRight © 2015-2022 宁ICP备15000399号-1 宁公网安备 64010402001209号
与其临渊羡鱼,不如退而结网
欢迎转载、分享、引用、推荐、收藏。