How to solve the problem that php images cannot be displayed due to errors

Solution to the problem that php cannot be displayed due to errors: 1. Turn off the notice error prompt of wamp through the "error_reporting(E_ALL & ~E_NOTICE);" method; 2. Define "$file" before the PHP code file =”;”.

Recommended: "PHP Video Tutorial"

php image due to errors And it cannot be displayed

(The picture above is displayed by Firefox browser, and Google browser displays a cross)

<?php
header("Content-type:image/jpeg");
 
$resource = fopen(&#39;001.png&#39;,&#39;r&#39;);
while($ff = fread($resource, 1024)){
    $file .= $ff;
};
 
echo $file;

Cause analysis: because there is a notice error.

$file .= $ff;

The prototype is:

$file = $file.$ff;

The $file in the middle is not defined, and an error will be reported

Solution:

Option 1: Turn off the notice error of wamp Tip.

error_reporting(E_ALL & ~E_NOTICE);

Option 2: Define it in front$file=”;

The above is the detailed content of How to solve the problem that php images cannot be displayed due to errors. For more information, please follow other related articles on the PHP Chinese website!