chdir

(PHP 4, PHP 5, PHP 7)

chdirMuda o diretório

Descrição

bool chdir ( string $directory )

Muda o diretório atual do PHP para diretorio.

Parâmetros

directory

The new current directory

Valor Retornado

Retorna TRUE em caso de sucesso ou FALSE em caso de falha.

Exemplos

Exemplo #1 chdir() example

<?php

// diretório atual
echo getcwd() . "\n";

chdir('public_html');

// diretório atual
echo getcwd() . "\n";

?>

O exemplo acima irá imprimir algo similar à:

/home/vincent
/home/vincent/public_html

Notas

Nota: Quando o safe-mode está ativo, o PHP verifica se o diretório no qual o script está em operação tem o mesmo UID (proprietário) do script que está sendo executado.

Veja Também

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User Contributed Notes 3 notes

up
5
herwin at snt dot utwente dot nl
10 years ago
When using PHP safe mode and trying to change to a dir that is not accessible due to the safe mode restrictions, the function simply fails without generating any kind of error message.

(Tested in PHP 4.3.10-16, Debian Sarge default)
up
-1
php dot duke at qik dot nl
7 years ago
When changing dir's under windows environments:

<?php
$path
="c:\temp"';
chdir($path);
/* getcwd() gives you back "c:\temp" */

$path="c:\temp\"'
;
chdir($path);
/* getcwd() gives you back "c:\temp\" */
?>

to work around this inconsistency
doing a chdir('.') after the chdir always gives back "c:\temp"
up
-40
andy dot clark at dial dot pipex dot com
10 years ago
This only changes the directory for PHP, the output directory stays the same. If you are trying to access images from a relative path and you use the following then it will fail to render the image:

chdir ('images');
if (file_exists('php.gif'))
{
echo '<html>';
echo '<body>';
echo '<img src="php.gif">';
echo '</body></html>';
}

//However, it is possible to use the <base> tag in the header to change the directory for the resulting HTML, as you can see however this requires you to put the full path in place.

chdir ('images');
if (file_exists('php.gif'))
{
echo '<html>';
echo '<head><base href = "http://uk.php.net/images/"></head>';
echo '<body>';
echo '<img src="php.gif">';
echo '</body></html>';
}
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