PHP debug_zval_dump() Function

PHP 可用的函数PHP Available Functions

debug_zval_dumpThis function is used to view a variable's reference count and type information in the Zend engine.

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

Syntax

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

Parameter description:

  • $variable: The variable to view.

Return Value

No return value.

Example

Example

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

The execution result is as follows:

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

PHP 可用的函数PHP Available Functions

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