How to determine whether the image exists in php

In PHP, you can use the file_exists() function to determine whether a picture exists. This function can detect whether a file or directory exists. The syntax format is "file_exists(lujing)"; if the picture file exists, it returns true. , otherwise return false.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In PHP, you can use the file_exists() function To determine whether the image exists.

<?php
header("Content-type:text/html;charset=utf-8");
$file = &#39;img.png&#39;;
if(file_exists($file)){
    echo "图片文件 {$file} 存在！";
}else{
    echo "图片文件 {$file} 不存在！";
}
?>

Output result:

Let’s take a brief look at the file_exists() function:

file_exists() function checks whether the file or directory is exist. Returns true if the specified file or directory exists, false otherwise.

Syntax: file_exists(path)

Parameter description is as follows:

• path: required. Specifies the path to be checked.

Recommended study: "PHP Video Tutorial"

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