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array_count_values (PHP 4 , PHP 5) array_count_values -- 统计数组中所有的值出现的次数 说明array array_count_values ( array input)
array_count_values() 返回一个数组，该数组用 input
数组中的值作为键名，该值在 input 数组中出现的次数作为值。
例子 1. array_count_values() 例子 |
<?php
$array = array (1, "hello", 1, "world", "hello");
print_r(array_count_values ($array));
?>
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以上程序输出为：
Array
(
[1] => 2
[hello] => 2
[world] => 1
) |
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参见 count()，array_unique()，array_values()
和 count_chars()。
 add a note
User Contributed Notes
array_count_values
tschneider at formel4 dot de
12-Jun-2002 10:09
This does not works with objects. If you have an array filled with objects,
you can not count them.
Example:
<?php
$myArray =
array();
for ($i = 0 ; $i < 10 ; $i++)
{
$myObject = new
MyObject();
$myArray[$i] = $myObject;
}
echo
(array_count_values($myArray));
?>
This gives
you:
Warning: Can only count STRING and INTEGER
values...
Found no solution for this yet...
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array_combine
