How to get images in PHP? (Pictures + Videos)

This article mainly introduces several PHP methods to obtain images in detail.

During the project development process, it is usually necessary to implement the function of obtaining images online or locally. Below we use simple code examples to summarize and introduce several PHP methods to obtain images.

First we need to make an image type declaration in the header of the PHP file:

<?php
header("content-type:image/jpeg");

Method 1: Get the image through readfile

readfile("123123.png");

readfile: Output file

The parameter here is the path of the local image

Pass the browser test and obtain the image as follows:

Also OK Obtain online images. For example, the image path parameter can be changed to:

readfile("https://img.php.cn/upload/article/000/000/003/5a9675a3b2106284.jpg");

Obtain the image as follows:

Method 2: Use curl series functions Get images

<?php
header("content-type:image/jpeg");
// 初始化
$pic = curl_init();
// 设置选项
curl_setopt($pic, CURLOPT_URL, "https://img.php.cn/upload/article/000/000/003/5a9675a3b2106284.jpg");
// 执行获取到的内容
curl_exec($pic);
// 释放curl句柄
curl_close($pic);

curl_init: Initialize cURL session

curl_setopt: Set cURL transmission options

The first parameter in curl_setopt() represents the initialized value, the second parameter represents the type of the input value, and the third parameter represents the image path

curl_exec: execute cURL session

curl_close: close cURL session

Finally obtained The picture is the same as the one on the center line above.

Method 3: Get the image through file_get_contents

echo file_get_contents("123123.png");

file_get_contents: Read the entire file into a string

Note : When using the file_get_contents function, you need to use echo to output the obtained content.

Method 4: Obtain images through fopen series functions

// 打开图片文件
$file = fopen("./123123.png", 'rb+');
// 读取图片文件
echo(fread($file, filesize("./123123.png")));
// 关闭文件句柄
fclose($file);

Note: Using fopen to obtain images can only obtain offline images , if you want to get online pictures, just copy the online pictures to your local computer.

The above is a detailed explanation of the four methods of PHP to obtain images. Hope it helps those in need!

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