    zend_thread_id (PHP 5, PHP 7, PHP 8)
zend_thread_id — Returns a unique identifier for the current thread   Description zend_thread_id(): int  This function returns a unique identifier for the current thread.    Parameters This function has no parameters.   Return Values  Returns the thread id as an integer.    Examples
 Example #1 zend_thread_id() example  <?php
$thread_id = zend_thread_id();

echo 'Current thread id is: ' . $thread_id;
?>  The above example will output something similar to:  
Current thread id is: 7864
     Notes 
Note: 
 This function is only available if PHP has been built with ZTS (Zend Thread Safety) support and debug mode (--enable-debug).    


    
{'path': 'public/docs/php/function.zend-thread-id.html', 'source': 'DevDocs.IO'}