In the past, multi-threading using curl was not real multi-threading, it was just a simulated multi-threading. Now pthreads is used to achieve true multi-threading.
Download:
Windows:
http://windows.php.net/downloads/pecl/releases/pthreads/0.0.45/
Under mac, unix, linux:
https://github. com/krakjoe/pthreads
Installation method:
Windows:
Unzip the files to get pthreadVC2.dll and php_pthreads.dll, put the vc2 file into the same level directory as php.exe, and put php_pthreads.dll into the extension directory.
Modify the php.ini file and add extension=php_pthreads.dll
int in in in in php. Blog http://blog.s135.com/pthreads/
Calling method:
For specific usage, you can also refer to Brother Yan’s blog http://blog.s135.com/pthreads/
It can also be combined with the previous get_html This is how to implement the class
1 class threads extends Thread 2 { 3 public $url = ''; 4 public $options = array(); 5 public $data; 6 7 public function __construct($url, $options = array()){ 8 $this->url = $url; 9 $this->options = $options; 10 } 11 12 public function run(){ 13 if(!empty($this->url)){ 14 $this->data = $this->get_html($this->url, $this->options); 15 } 16 } 17 18 public function get_html($url,$options = array()){ 19 if(empty($options)){ 20 $options[CURLOPT_RETURNTRANSFER] = true; 21 $options[CURLOPT_TIMEOUT] = 5; 22 } 23 $ch = curl_init($url); 24 curl_setopt_array($ch,$options); 25 $html = curl_exec($ch); 26 curl_close($ch); 27 if($html === false){ 28 return false; 29 } 30 return $html; 31 } 32 }

The above introduces pthreads multi-threaded data collection, including aspects of it. I hope it will be helpful to friends who are interested in PHP tutorials.

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