# mhash_count

(PHP 4, PHP 5, PHP 7, PHP 8)

mhash_count — Gets the highest available hash ID

警告

此函数自 PHP 8.1.0 起弃用。强烈建议不要应用此函数。

### 说明

#[\Deprecated]
mhash_count(): int

Gets the highest available hash ID.

### 参数

此函数没有参数。

### 返回值

Returns the highest available hash ID. Hashes are numbered from 0 to this hash ID.

### 更新日志

版本 | 说明
--- | ---
8.1.0 | This function has been deprecated. Use the `hash_*()` functions instead.

### 示例

示例 #1 Traversing all hashes

`<?php
$nr = mhash_count();
for ($i = 0; $i <= $nr; $i++) {
echo sprintf("The blocksize of %s is %d\n",
mhash_get_hash_name($i),
mhash_get_block_size($i));
}
?>`
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