(PECL pht >= 0.0.1)
pht\HashTable::size — Gets the size of the hash table
Returns the current size of the hash table. This operation requires a pht\HashTable's mutex lock to be held if it is being used by multiple threads.
此函数没有参数。
The size of the hash table.
Example #1 Getting a hash table's size
<?php
use pht\HashTable;
$hashTable = new HashTable();
$hashTable['a'] = 1;
$hashTable['b'] = 2;
var_dump($hashTable->size());
以上例程会输出：
int(2)