PHP's method of using curl to determine web page 404 (not exists) Original

This article example describes the method of using curl to judge web page 404 (not exists). Share it for your reference, as follows:

<?php
/* php uses curl to judge 404
  * Created on 2016-6-22
  * Writer
  */
 function chkurl($url){
    $handle = curl_init($url);
    curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($handle, CURLOPT_CONNECTTIMEOUT, 10);//Set the timeout time    curl_exec($handle);
    //Check whether it is 404 (web page cannot be found)    $httpCode = curl_getinfo($handle, CURLINFO_HTTP_CODE);
    if($httpCode == 404) {
      return false;
    }else{
        return true;
    }
    curl_close($handle);
 }
 $url="https:///";
 if(chkurl($url)==true){
     echo "exist";
 }else{
     echo "Not exists";
 }
?>

The result of the operation is: does not exist

Supplement: For HTTP request header information, please refer to the online tools of this site:

HTTP status code collection:
http://tools./table/http_status_code

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I hope this article will be helpful to everyone's PHP programming.