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PHP Directory Functions

chdir()

chdir to change the directory to a different one. This function returns true on success and false on Failure. We have used getcwd() function to get the current directory location. Here is a sample code.
echo getcwd();
chdir('test_dir');
echo "<br>";
echo getcwd();
Output of above code is here
J:\php_files\t\dir
J:\php_files\t\dir\test_dir
To change from current directory to one step up directory
echo getcwd();
chdir('..');
echo "<br>";
echo getcwd();
As chdir() returns TRUE or FALSE we can use if condition to post message.
echo getcwd();
echo "<br>";
if(@chdir('test_dir2')){
echo getcwd();
}else{
echo " Wrong Directory ";
}

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