Collator::getSortKey

collator_get_sort_key

(PHP 5 >= 5.3.11, PHP 7, PECL intl >= 1.0.3)

Collator::getSortKey -- collator_get_sort_key — Get sorting key for a string

说明

面向对象风格

public Collator::getSortKey ( string $str ) : string

过程化风格

collator_get_sort_key ( Collator $coll , string $str ) : string

Return collation key for a string.

参数

coll

Collator object.

str

The string to produce the key from.

返回值

Returns the collation key for the string. Collation keys can be compared directly instead of strings.

Warning

此函数可能返回布尔值 FALSE，但也可能返回等同于 FALSE 的非布尔值。请阅读 布尔类型章节以获取更多信息。应使用 === 运算符来测试此函数的返回值。

范例

Example #1 collator_get_sort_key()example

<?php
$s1 = 'Hello';

$coll = collator_create( 'en_US' );
$res  = collator_get_sort_key( $coll, $s1);

echo urlencode($res);
?>

以上例程会输出：


71%3F%3FE%01%09%01%8F%08%00

参见

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