PHP debug_zval_dump() function

Author：Eve Cole Update Time：2024-12-28 12:36:01

The debug_zval_dump function is used to view the reference count and type information of a variable in the zend engine.

Version requirements: PHP 4 >= 4.2.0, PHP 5, PHP 7

grammar

 void debug_zval_dump ( mixed $variable [, mixed $... ] )

Parameter description:

$variable: The variable to view.

There is no return value.

<?php $a = ' codercto ' ; debug_zval_dump ( $a ) ; // Multiple parameters $b = ' google ' ; debug_zval_dump ( $a , $b ) ; ?>

The execution result is as follows:

 string(6) "codercto" refcount(1)string(6) "codercto" refcount(1)string(6) "google" refcount(1)