How to delete files in php

php method to delete files

First of all, generally use the "file_exists" function before deleting a file to determine whether the file exists. If it exists, then Delete;

$filename = '/test.jpg';

if (file_exists($filename)) {
  //文件存在
} else {
  //文件不存在
}

Then check whether you have permission to delete, if not, use the function "chmod" to modify the permission;

//修改权限
chmod($filename,0777);

Finally, use the function "unlink" to delete the file.

//删除文件
if (unlink('./filename.txt')) {
  //删除成功
} else {
  //删除失败
}

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