如何从字符串中删除所有数字?

I'd like to remove all numbers from a string [0-9]. I wrote this code that is working:

我想从字符串[0-9]中删除所有数字。我写的这段代码是有效的:

$words = preg_replace('/0/', '', $words ); // remove numbers
$words = preg_replace('/1/', '', $words ); // remove numbers
$words = preg_replace('/2/', '', $words ); // remove numbers
$words = preg_replace('/3/', '', $words ); // remove numbers
$words = preg_replace('/4/', '', $words ); // remove numbers
$words = preg_replace('/5/', '', $words ); // remove numbers
$words = preg_replace('/6/', '', $words ); // remove numbers
$words = preg_replace('/7/', '', $words ); // remove numbers
$words = preg_replace('/8/', '', $words ); // remove numbers
$words = preg_replace('/9/', '', $words ); // remove numbers

I'd like to find a more elegant solution: 1 line code (IMO write nice code is important).

我想找到一个更优雅的解决方案:一行代码(我觉得写漂亮的代码很重要)。

The other code I found in * also remove the Diacritics (á,ñ,ž...).

*中的其他代码我也删除附加符号(n,ž……)。

5 个解决方案

#1

103

For Western Arabic numbers (0-9):

西方阿拉伯数字(0-9):

$words = preg_replace('/[0-9]+/', '', $words);

For all numerals including Western Arabic (e.g. Indian):

所有数字，包括西阿拉伯语(例如印度语):

$words = '१३३७';
$words = preg_replace('/\d+/u', '', $words);
var_dump($words); // string(0) ""

\d+ matches multiple numerals.
\ d +匹配多个数字。
The modifier /u enables unicode string treatment. This modifier is important, otherwise the numerals would not match.
修改器/u支持unicode字符串处理。这个修饰语很重要，否则数字不匹配。

#2

Try with regex \d:

试着用正则表达式\ d:

$words = preg_replace('/\d/', '', $words );

\d is an equivalent for [0-9] which is an equivalent for numbers range from 0 to 9.

\d对于[0-9]是等价的，对于从0到9的数字是等价的。

#3

Use some regex like [0-9] or \d:

使用一些regex，如[0-9]或\d:

$words = preg_replace('/\d+/', '', $words );

You might want to read the preg_replace() documentation as this is directly shown there.

您可能想要阅读preg_replace()文档，因为它直接显示在那里。

#4

Regex

正则表达式

   $words = preg_replace('#[0-9 ]*#', '', $words);

#5

Use Predefined Character Ranges

使用预定义的字符范围

echo $words= preg_replace('/[[:digit:]]/','', $words);

echo $的话= preg_replace(' /[[数位:]]/”,“美元的话);

#1

103