Gets the highest available hash ID

# 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]
function 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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