I have this bbcode tag "remover" which should remove bbcode tags from my test text.
All i get is nothing. Just blank page where should be the text replaced with html tags.
Whats wrong with it. And maybe anyone have some better script to share.
$str = 'This [b]is just[/b] a [i]test[/i] text!';
function forum_text($str)
{
$str = htmlspecialchars($str);
$str = preg_replace( "#\[url\](?:http:\/\/)?(.+?)\[/url\]#is", "$1", $str );
$str = preg_replace( "#\[img\](?:http:\/\/)?(.+?)\[/img\]#is", "<img src=\"http://$1\" />", $str );
$str = preg_replace( "#\[b\](.+?)\[/b\]#is", "<strong>$1</strong>", $str );
$str = preg_replace( "#\[i\](.+?)\[/i\]#is", "<i>$1</i>", $str );
$str = preg_replace( "#\[u\](.+?)\[/u\]#is", "<u>$1</u>", $str );
return $str;
}
The following is your code, with some code in front of it (to make sure any errors are shown) and some code at the back (that actually calls your function).
If this doesn't work for you, your problem is not here, unless you don't have a working PCRE.
error_reporting(-1); ini_set('display_errors', 'On');
$str = 'This [b]is just[/b] a [i]test[/i] text!';
function forum_text($str)
{
$str = htmlspecialchars($str);
$str = preg_replace( "#\[url\](?:http:\/\/)?(.+?)\[/url\]#is", "$1", $str );
$str = preg_replace( "#\[img\](?:http:\/\/)?(.+?)\[/img\]#is", "<img src=\"http://$1\" />", $str );
$str = preg_replace( "#\[b\](.+?)\[/b\]#is", "<strong>$1</strong>", $str );
$str = preg_replace( "#\[i\](.+?)\[/i\]#is", "<i>$1</i>", $str );
$str = preg_replace( "#\[u\](.+?)\[/u\]#is", "<u>$1</u>", $str );
return $str;
}
echo forum_text($str);
Related
I need to remove # from string. I found this method:
$string = preg_replace('/[\x00-\x1F\x80-\xFF]/', '', $string);
It doesn't work for the Thai language. I want to remove like this:
from
#Apple #ผลไม้
to
#Apple #ผลไม้
I can not understand why str_replace() did not work for you. This will do the job:
function cleanString($string) {
$search = array('', '', '');
$replace = array('', '', '');
return str_replace($search, $replace, $string);
}
$string = '#Apple #ผลไม้';
echo $string . "\n";
echo cleanString($string) . "\n";
Output is:
#Apple #ผลไม้
#Apple #ผลไม้
Working example can be found at http://sandbox.onlinephpfunctions.com/code/bbdbdf0758e5ea06faf32281021ae859b6d75a51
I have a string s follows:
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«/math»
I want to convert it to:
<math><msup><mi>x</mi><mn>2</mn></msup></math>
What I tried is as follows:
$text = str_replace("«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»","<math>", $text);
$text = str_replace("«/math»","</math>", $text);
$text = str_replace("»Â",">", $text);
$text = str_replace("«","<", $text);
echo $text;
But for my bad luck I am getting the output string as :
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«/math»
How can I make it?
There are just a couple str_replace's to do...
$text = "«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«/math»";
$text = str_replace("«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»","<math>", $text);
$text = str_replace("«/math»","</math>", $text);
$text = str_replace("»Â",">", $text);
$text = str_replace("»",">", $text);
$text = str_replace("«","<", $text);
$text = str_replace("«","<", $text);
$text = str_replace("Â","", $text);
echo $text; // outputs <math><msup><mi>x</mi><mn>2</mn></msup></math>
You can use utf8_decode to remove the  symbol and replace all the unnecessary values using str_replace.
PHP Code
<?php
$text = utf8_decode("«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«/math»");
$text = str_replace("«","<",$text);
$text = str_replace("»",">",$text);
$text = str_replace("xmlns=¨http://www.w3.org/1998/Math/MathML¨","",$text);
echo htmlspecialchars($text);
?>
Link::
Demo with source code in phpfiddle
Result::
how to replace <p>hello</p> <p>world</p> to hello<br />world <br />
I've tried searching on stack but there is no matched result.
You could do this by using str_replace() function.
For instance:
$string = "<p>hello</p> <p>world</p>";
$string = str_replace('<p>', '', $string);
$string = str_replace('</p>', '<br />' , $string);
I try this myself and get what I expected
$pattern = '/<p>(\w+)\<\/p>/';
$subject = '<p>hello</p><p>world</p>';
$replacement = '${1}<br/>';
$out = preg_replace($pattern, $replacement, $subject);
I just wonder which is better regex or str_replace
I wrote a better solution, hope everybody can see it helpful and maybe improve it
$pattern = '/<p(.*?)>((.*?)+)\<\/p>/';
$replacement = '${2}<br/>';
$subject = 'html string';
$out = preg_replace($pattern, $replacement, $subject);
Use this to prevent breaking the first and last <p></p> :
$string = str_replace($string, '</p><p>', '');
But if a space comes between the tags, it won't work.
<?php
$str = '<p>hello</p> <p>world</p>';
$replaceArr = array('<p>', '</p>', '</p> <p>');
$replacementArr = array('', '', '<br />');
$str = str_replace($replaceArr, $replacementArr, $str);
echo $str;
?>
Try above code.
Based on a question I had answered here ( Use PHP to Replace HTML with HTML ), I'd like to be able to filter my output text for email addresses, and convert those text emails to "mailto" links.
Here's the PHP code that works, but only for converting some HTML to other HTML. What I've tried to do is have this function look for an email address, and convert it to a "mailto" link. For whatever reason, the code doesn't convert the email addresses. Here's my PHP:
function text_filter($string) {
$search = array('<p>__</p>', '/[a-zA-Z0-9._-]+#[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}/');
$replace = array('<hr />', '$2');
$processed_string = str_replace($search, $replace, $string);
echo $processed_string;
}
When I use this function for output, this is what the code looks like:
<?php text_filter( get_the_content() ); ?>
str_replace() doesn't use regular expressions, rewritten with preg_replace().
Added delimiters to first matching expression.
Fixed replacement from $1 to $2.
function text_filter($string) {
$search = array('/<p>__<\/p>/', '/([a-zA-Z0-9._-]+#[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4})/');
$replace = array('<hr />', '$1');
$processed_string = preg_replace($search, $replace, $string);
echo $processed_string;
}
#Adam Baney - This will work even when used repeatedly.
// EMAILS
$str = preg_replace('~(^|[\s\.,;\n\(])([a-zA-Z0-9._+-]+#[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4})~',
'$1$2',
$str);
// PHONE NUMBERS
$str = preg_replace_callback('~(^|[\s\.,;\n\(])(?<! )([0-9 \+\(\)]{9,})~', function($m) {
return $m[1].''.$m[2].'';
}, $str);
You can't use str_replace to do a regular expression replace.
You will need to split the actions up.
function text_filter($string) {
$search = array('<p>__</p>');
$replace = array('<hr />');
$processed_string = str_replace($search, $replace, $string);
$processed_string = preg_replace('/[a-zA-Z0-9._-]+#[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}/','$2',$processed_string);
echo $processed_string;
}
See: http://www.php.net/manual/en/function.preg-replace.php for preg replacing.
function obfuscate_email($content){
$pattern = '#([0-9a-z]([-_.]?[0-9a-z])*#[0-9a-z]([-.]?[0-9a-z])*\\.';
$pattern .= '[a-wyz][a-z](fo|g|l|m|mes|o|op|pa|ro|seum|t|u|v|z)?)#i';
$replacement = '\\1';
$content = preg_replace($pattern, $replacement, $content);
return $content;
}
And add filter
add_filter( 'the_content', 'obfuscate_email' );
Another way to do it in order so that it would work with existing html links in text:
function html_parse_text($text)
{
$text = preg_replace("/(?<!\")(((f|ht){1}tps?:\/\/)[-a-zA-Z0-9#:%_\+.~#?&\/\/=]+)/",
'<a href="\\1" target=_blank>\\1</a>', $text);
$text = preg_replace("/([[:space:]()[{}])(www.[-a-zA-Z0-9#:%_\+.~#?&\/\/=]+)/",
'\\1<a href="http://\\2" target=_blank>\\2</a>', $text);
$text = preg_replace("/(?<!\")([_\.0-9a-z-]+#([0-9a-z][0-9a-z-]+\.)+[a-z]{2,3})/",
'<a href="mailto:\\1" target=_blank>\\1</a>', $text);
return $text;
}
Here is another version of this that seems to work for me. I've added + char to handle "plus addressing" (like some+email#address.com)
function replaceemail($text) {-
$ex = "/([a-zA-Z0-9._+-]+#[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4})/";
preg_match_all($ex, $text, $url);
foreach($url[0] as $k=>$v) $text = str_replace($url[0][$k], ''.$url[0][$k].'', $text);
return $text;
}
i have a long string like
$str = "this is [my] test [string] and [string] is very long [with] so many pwords]"
i know str_replace function, but when i replace
$str = str_replace( "[", "<a href=\"/story.php?urdu=",$str;
$str = str_replace( "]", "\"></a>",$str;
i got this result
but i want this result for each word in []
test
You should use preg_replace() for this one.
Code
<?php
function replace_matches($matches) {
$text = htmlspecialchars($matches[1]);
$url = urlencode($matches[1]);
return "{$text}";
}
$str = "this is [my] test [string] and [<script>alert(1)</script>] is very long [with] so many pwords]";
$str = preg_replace_callback("%\[(.+?)\]%", "replace_matches", $str);
echo $str;
?>
Working Example
$str = preg_replace_callback(
'/\[([^\]]*)\]/',
function($matches) {
return sprintf('%s',
urlencode($matches[1]),
htmlspecialchars($matches[1]));
},
$str);