preg_replace() is a PHP function that performs string replacement using regular expressions.
preg_replace() is a function member of Perl Compatible Regular Expressions implementation of php.
Check out PCRE in the official PHP documentation
Questions tagged [preg-replace]
5858 questions
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How to get a clean string with extension with preg_replace in php?
I'd like to convert this string
$text = "TEST#%_'JanE,.-_doc30)/||\.pdf$@!3)";
into a clean string like this
TEST_JanE_doc30.pdf
So, basically the preg_replace should be:
change all non letter and number before the extension into a single…
Shota
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Replace all lines except first
I trying do something like that for example:
And I want replace all lines contains IMG with "---" except first. I don't want delete it, just…
And I want replace all lines contains IMG with "---" except first. I don't want delete it, just…
Max
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2 answers
How to remove special characters from file name after upload
I am uploading a zip folder using Laravel after uploading I am extracting this zip folder using the zip archive everything works perfectly but I have a problem with file names in this folder, The extracted folder may contain many files these file…
Salman Iqbal
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2 answers
escape a + sign in preg_replace
How can I escape this?
/{\([^.{}]*)-}/
And this?
/{\([^.{}]*)+}/
Vish
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php: dynamic preg_replace
The code below is not a functioning method it's just written to help you understand what I'm trying to do.
// $i = occurrence to replace
// $r = content to replace
private function inject($i, $r) {
// regex matches anything in the format…
kr1zmo
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1 answer
How do I allow _ in this regex for this function
I have a function that works great at converting links, @tags and #hashtags into links, however it does not convert @tags_underscore or #hashtags_underscore, or links with underscore in them into links fully as it leave out the _underscore part of…
SlickRemix
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recreate js regex match function in php
I have a problem with recreation function written in Javascript, to make it work in php. I think that I am really close, but don't understand php syntax that well.
So I have something like that in JS:
function convertStr(str, id) {
const…
piotrruss
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Php preg_replace, replace only a subtring of matched element
With preg_replace, I can replace a matched substring by another like this :
echo preg_replace("yellow", "blue", "sky is yellow");
// print "sky is blue"
But is it possible to replace only a substring in the search string by another string ?
By…
spacecodeur
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Expand inverted regex to allow 1 space character
How can I alter the pattern below to allow 1 space character ?
$name = 'too long name';
$pattern_name = '/[^a-zA-Z]/';
if (preg_match($pattern_name,$name)) { // remove any non-letter characters
$name = preg_replace($pattern_name,'',$name);
…
Kim
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Remove all http and https from HTML but exclude placeholder
I want to remove all http: and https: in the HTML files but exclude placeholder="http: and placeholder="https:. I have tried the following example but every http: and https: will be removed:
/(?!placeholder=")(http:|https:)/
Thomas Müller
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2 answers
Regular Expression matching with start tag and closing tag as a new line
I've been producing a letter compilation system (to save people time after a questionaire has been filled in) and near the end of the project we've found a bug. Long story short it would take many hours to fix without this regular expression - which…
Gordi555
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4 answers
Remove tag from HTML content
I trying to get a clean paragraph to be displayed on the website but, because of the in the middle of the content I am not getting the expected output. I have tried the following but none of them worked and I am still getting around…
Alisha Lamichhane
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1 answer
find reason for automatic encoding detection (UTF-8 vs Windows-1252)
I have a CSV with content that is UTF-8 encoded. However, various applications and systems errorneously detect the encoding of the CSV as Windows-1252, which breaks all the special characters in the file (e.g. Umlauts).
I can see that Sublime Text…
fritzmg
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detect links from sql data and show only 50 letters of it as text
I have been working on a coupon code website and was able to modify some settings, but this one seems to be troubling me...
description; …
Shijil
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Matching all tags in preg_replace
We are new to regex (preg_replace) in PHP and are having a little trouble getting it to do exactly what we want.
We have, for example, HTML code like this:
Automatic Writing – A Conduit For An Entity From Another…
Ted Wilmont
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