PHP unlink function deletes a file program code_PHP tutorial

In PHP, if we want to delete a specified file, we can use the unlink function to achieve this. Below, I will give you a detailed introduction to the specific method of the unlink function to delete a specified file. Friends who need to know more can refer to it.

The unlink() function deletes files.

Returns true if successful, false if failed.

The code is as follows

代码如下	复制代码
unlink("test.txt"); ?>

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代码如下	复制代码
$file = "test.txt";if (!unlink($file)) { echo ("Error deleting $file"); }else { echo ("Deleted $file"); } ?>

unlink("test.txt");

?>

代码如下	复制代码
$file = "test.txt"; if(unlink($file)) { echo "文件 $file 删除成功！"; } else { echo "文件 $file 删除失败！"; } ?>

Example

The code is as follows

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代码如下	复制代码
$myfile = “./test1.txt”; if (file_exists($myfile)) { $result=unlink ($myfile); echo $result; } ?>

$file = "test.txt";if (!unlink($file)) {

echo ("Error deleting $file"); }else {

echo ("Deleted $file"); }

?>

代码如下	复制代码
$dirname = 'testdir'; if (rmdir( $dirname )) { echo "目录 $dirname 删除成功"; } else { echo "目录 $dirname 删除失败"; } ?>

Add judgment

The code is as follows

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$file = "test.txt"; if(unlink($file)) { echo "File $file deleted successfully!"; } else { echo "File $file deletion failed!"; } ?>

Output result: The file test.txt was deleted successfully! The following is added to determine whether the file exists:

The code is as follows

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<🎜>$myfile = “./test1.txt”;<🎜> if (file_exists($myfile)) {<🎜> $result=unlink ($myfile);<🎜> echo $result;<🎜> }<🎜> ?> The rmdir() function deletes a directory and returns TRUE if successful, otherwise it returns FALSE. Syntax: bool rmdir( string dirname ) Example:

The code is as follows

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$dirname = 'testdir';<🎜> if (rmdir( $dirname )) {<🎜> echo "Directory $dirname deleted successfully";<🎜> } else {<🎜> echo "Failed to delete directory $dirname";<🎜> }<🎜> ?> http://www.bkjia.com/PHPjc/628815.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/628815.htmlTechArticleIn php, if we want to delete a specified file, we can use the unlink function to achieve this. I will give you a detailed introduction below. The specific method of unlink function to delete a specified file, if needed...