CODEWITHSUNDEEP
phptrimspaces
Андрей Сердюк
Андрей Сердюк

Reputation: 600

Delete spaces php

I need delete all tags from string and make it without spaces.

I have string 

"<span class="left_corner"> </span><span class="text">Adv</span><span class="right_corner"> </span>"

After using strip_tags I get string

" Adv "

Using trim function I can`t delete spaces.

JSON string looks like "\u00a0...\u00a0".

Help me please delete this spaces.

Upvotes: 1

Views: 4247

Answers (5)

SaHu
SaHu

Reputation: 1

I was using the accepted solution for years and I've been wrong all this time. If I can find this solution in 2022, others too, so please change the accepted solution to the one from @e1v who was right all this time.

You SHOULD NOT DO THIS!

echo trim('Au delà', ' '.chr(0xC2).chr(0xA0));

As it corrupts the UTF-8 encoding:

Au del�

Note that a "modern" (PHP 7) way to write this could be:

echo trim('Au delà', " \u{a0}");//This is WRONG, don't do it!

Personally, when I have to deal with non breakable spaces (Unicode 00A0, UTF8 C2A0) in strings, I replace the trailing/ending ones by regular spaces (Unicode 0020, UTF8 20), and then trim the string. Like this:

echo trim(preg_replace('/^\s+|\s+$/u', ' ', "Au delà\u{a0}"));

(I would have post a comment or just vote the answer up, but I can't).

Upvotes: 0

e1v
e1v

Reputation: 637

You should use preg_replace(), to make it in multibyte-safe way.

$str = preg_replace('/^[\s\x00]+|[\s\x00]+$/u', '', $str);

Notes:

  • this will fix initial @Андрей-Сердюк's problem: it will trim \u00a0, because \s matches Unicode non-breaking spaces too
  • /u modifier (PCRE_UTF8) tells PCRE to handle subject as UTF8-string
  • \x00 matches null-byte characters to mimic default trim() function behavior

Accepted @Андрей-Сердюк trim() answer will mess with multibyte strings.

Example: 

// This works:
echo trim(' Hello ', ' '.chr(0xC2).chr(0xA0)); 
// > "Hello" 

// And this doesn't work:
echo trim('  Solidarietà  ', ' '.chr(0xC2).chr(0xA0)); 
// > "Solidariet?" -- invalid UTF8 character sequense

// This works for both single-byte and multi-byte sequenses:
echo preg_replace('/^[\s\x00]+|[\s\x00]+$/u', '', ' Hello ');
// > "Hello"
echo preg_replace('/^[\s\x00]+|[\s\x00]+$/u', '', ' Solidarietà '); 
// > "Solidarietà"

Upvotes: 4

Андрей Сердюк
Андрей Сердюк

Reputation: 600

Solution of this problem

$str = trim($str, chr(0xC2).chr(0xA0))

Upvotes: 7

public override
public override

Reputation: 982

$str = '<span class="left_corner"> </span><span class="text">Adv</span><span class="right_corner"> </span>';
$rgx = '#(<[^>]+>)|(\s+)#';
$cleaned_str = preg_replace( $rgx, '' , $str );
echo '['. $cleaned_str .']';

Upvotes: -1

Oskar
Oskar

Reputation: 139

How about: 

$string = '" Adv "';
$noSpace = preg_replace('/\s/', '', $string);

?

http://php.net/manual/en/function.preg-replace.php

Upvotes: 0

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