CODEWITHSUNDEEP
phpregexstring
user3736833
user3736833

Reputation: 119

PHP: how to remove special char(except some) from string

Hello i tried below code using regex

$str =  preg_replace("/[^a-z0-9_]/i", '', 'New_text % *');

//output => New_text

( _ is except char )

all work perfect but when my input string something like in other language(ex Hindi), char in Hindi Lang will also delete.

same as above example

$str =  preg_replace("/[^a-z0-9_]/i", '', 'कपिल शर्मा % * _');

//output => _

how to get: कपिल शर्मा _

is there any mistake in regex or any other way in PHP we can do?

Upvotes: 3

Views: 2601

Answers (3)

Wiktor Stribiżew
Wiktor Stribiżew

Reputation: 627469

You need to use

'~[^\p{M}\w]+~u'

See the regex demo

It seems that PHP PCRE regex does not match combining marks with \W and /u modifier, so, we need to use the corresponding [^\w] negated character class and add a \p{M} Unicode property (combining marks) there.

See more on Unicode properties here.

Upvotes: 2

Naumov
Naumov

Reputation: 1167

you can use filter_var

filter_var('your string &% * _',FILTER_SANITIZE_STRING | FILTER_FLAG_STRIP_HIGH);

or if you can smal symbol you can use str_replace

$arrayRequer = array('*','_','^','%');
str_replace($arrayRequer,'',$yourString);

Upvotes: 0

Toto
Toto

Reputation: 91518

Use unicode properties:

$str =  preg_replace("/[^\p{L}\p{N}\p{Z}_]/u", '', 'कपिल शर्मा % * _');

Where

  • \p{L} stands for any letter in any language
  • \p{N} stands for any digit in any language
  • \p{Z} stands for any kind of separator.
  • u flag for unicode

Documentation

Upvotes: 2

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