Parse a number

# NumberFormatter::parse

# numfmt_parse

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)

NumberFormatter::parse -- numfmt_parse — Parse a number

### 说明

面向对象风格

public function NumberFormatter::parse(string `$string`, int `$type` = `NumberFormatter::TYPE_DOUBLE`, int `&$offset` = `null`): int|float|false

过程化风格

function numfmt_parse(
NumberFormatter `$formatter`,
string `$string`,
int `$type` = `NumberFormatter::TYPE_DOUBLE`,
int `&$offset` = `null`
): int|float|false

Parse a string into a number using the current formatter rules.

### 参数

`formatter`

  NumberFormatter object.

`string`

  The string to parse for the number.

`type`

  The formatting type to use. By default, `NumberFormatter::TYPE_DOUBLE` is used. Note that `NumberFormatter::TYPE_CURRENCY` is not supported; use NumberFormatter::parseCurrency() instead.

`offset`

  Offset in the string at which to begin parsing. On return, this value will hold the offset at which parsing ended.

### 返回值

The value of the parsed number or `false` on error.

### 示例

示例 #1 numfmt_parse() example

    <?php
    $fmt = numfmt_create( 'de_DE', NumberFormatter::DECIMAL );
    $num = "1.234.567,891";
    echo numfmt_parse($fmt, $num)."\n";
    echo numfmt_parse($fmt, $num, NumberFormatter::TYPE_INT32)."\n";
    ?>

示例 #2 OO example

    <?php
    $fmt = new NumberFormatter( 'de_DE', NumberFormatter::DECIMAL );
    $num = "1.234.567,891";
    echo $fmt->parse($num)."\n";
    echo $fmt->parse($num, NumberFormatter::TYPE_INT32)."\n";
    ?>

以上示例会输出：

    1234567.891
    1234567

### 参见

- numfmt_get_error_code() - Get formatter's last error code
- numfmt_format() - Format a number
- numfmt_parse_currency() - Parse a currency number

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