HashContext::__debugInfo

(PHP 8 >= 8.4.0)

HashContext::__debugInfo — Returns debugging information about the hashing context

public function HashContext::__debugInfo(): array

This method is not meant to be called directly; it is invoked by var_dump() and related functions when inspecting a HashContext instance.

此函数没有参数。

Returns an associative array of debugging information. It contains an algo key holding the name of the hashing algorithm in use by the context.

示例 #1 HashContext::__debugInfo() example

<?php
$ctx = hash_init('sha256');
var_dump($ctx);
?>

以上示例会输出：

object(HashContext)#1 (1) {
  ["algo"]=>
  string(6) "sha256"
}