How to delete uploaded pictures in php

php method to delete uploaded images: first check whether the uploaded file is of a type that is allowed to be uploaded; then get the full path of the image; finally delete the image through the "unlink("uppic/".$img);" method That’s it.

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Simple PHP sample code for uploading images and deleting images

Share a simple sample code for uploading images and deleting images in PHP. It is very simple and suitable for reference for beginners. It is also good for studying uploading images in PHP.

1. PHP upload pictures:

<?php
if (!empty($_FILES["img"]["name"])) { //提取文件域内容名称，并判断
$path=”uppic/”; //上传路径
if(!file_exists($path))
{
//检查是否有该文件夹，如果没有就创建，并给予最高权限
mkdir(“$path”, 0700);
}//END IF
//允许上传的文件格式
$tp = array(“image/gif”,”image/pjpeg”,”image/jpeg”);
//检查上传文件是否在允许上传的类型
if(!in_array($_FILES["img"]["type"],$tp))
{
echo “<script>alert(‘格式不对&#39;);history.go(-1);</script>”;
exit;
}//END IF
$filetype = $_FILES[&#39;img&#39;][&#39;type&#39;];
if($filetype == ‘image/jpeg&#39;){
$type = ‘.jpg&#39;;
}
if ($filetype == ‘image/jpg&#39;) {
$type = ‘.jpg&#39;;
}
if ($filetype == ‘image/pjpeg&#39;) {
$type = ‘.jpg&#39;;
}
if($filetype == ‘image/gif&#39;){
$type = ‘.gif&#39;;
}
if($_FILES["img"]["name"])
{
$today=date(“YmdHis”); //获取时间并赋值给变量
$file2 = $path.$today.$type; //图片的完整路径
$img = $today.$type; //图片名称
$flag=1;
}//END IF
if($flag) $result=move_uploaded_file($_FILES["img"]["tmp_name"],$file2);
//注意，此处传递给move_uploaded_file的第一个参数为上传到服务器上的临时文件
}//END IF
//此处再将$img的值写入到数据库中对应的字段

2. PHP delete pictures:

 <?php
 unlink(“uppic/”.$img); //unlink方法删除文件

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