php man page for zend_version

ZEND_VERSION(3) 							 1							   ZEND_VERSION(3)

zend_version - Gets the version of the current Zend engine

SYNOPSIS
       string zend_version (void  )

DESCRIPTION
	Returns a string containing the version of the currently running Zend Engine.

RETURN VALUES
	Returns the Zend Engine version number, as a string.

EXAMPLES
       Example #1

	      zend_version(3) example

	      <?php
	      echo "Zend engine version: " . zend_version();
	      ?>

	      The above example will output something similar to:

	      Zend engine version: 2.2.0

SEE ALSO
       phpinfo(3), phpcredits(3), php_logo_guid(3), phpversion(3).

PHP Documentation Group 													   ZEND_VERSION(3)