CODEWITHSUNDEEP
phpregeximagemultilinesanitization
Josh
Josh

Reputation: 3

Remove excess newlines/whitespace from multi-line <img> tag in HTML string

How could I remove all the new lines from all img tags. So for instance if I have:

$string = '<img
           src="somelong
            pathimage.jpg"
             height="1" width="10">';

so it looks as:

$string = '<img src="somelongpathimage.jpg" height="1" width="10">';

Upvotes: 0

Views: 392

Answers (3)

svoop
svoop

Reputation: 3464

If you indeed want to leave everything untouched but the guts of the img tags, the code bloats a little:

$string = "<html>\n<body>\nmy intro and <img\n src='somelong\npathimage.jpg'\n height='1'   width='10'> and another <img\n src='somelong\npathimage.jpg'\n height='1' width='10'> before end\n</body>\n</html>";
print $string;
print trim_img_tags($string);

function trim_img_tags($string) {
  $tokens = preg_split('/(<img.*?>)/s', $string, 0, PREG_SPLIT_DELIM_CAPTURE);
  for ($i=1; $i<sizeof($tokens); $i=$i+2) {
    $tokens[$i] = preg_replace("/(\n|\r)/", "", $tokens[$i]);
  }
  return implode('', $tokens);
}

Before:

<html>
<body>
my intro and <img
 src='somelong
pathimage.jpg'
 height='1' width='10'> and another <img
 src='somelong
pathimage.jpg'
 height='1' width='10'> before end
</body>
</html>

After:

<html>
<body>
my intro and <img src='somelongpathimage.jpg' height='1' width='10'> and another <img src='somelongpathimage.jpg' height='1' width='10'> before end
</body>
</html>

Upvotes: 0

ckaufman
ckaufman

Reputation: 1497

Because each OS have different ASCII chars for linebreak:
windows = \r\n
unix = \n
mac = \r

$string = str_replace(array("\r\n", "\r", "\n"), "", $string);

Thread link: http://www.php.net/manual/en/function.nl2br.php#73440

Upvotes: 2

Duniyadnd
Duniyadnd

Reputation: 4043

$string = preg_replace("/\n/" , "" , $string);

Upvotes: 0

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