str-replace

Would it be possible to incorporate a str_replace method with a regular expression, designed to catch url strings in a simple html < textfield > input type? I'm considering something simple like a tip for the user to set it up as follows: This is some text and click this link here . Obviously the word "here" is a href to the url before it (or after it, if that makes a difference). The text input is drawn from a MySQL db. I believe the start of my solution is something along the lines of: $regex = ''; $pg = $row['pg']; $pg = str_replace('{regex goes here}', $pg); But I know things are missing.

I'm having some troubles with the PHP function str_replace when using arrays. I have this message: $message = strtolower("L rzzo rwldd ty esp mtdsza'd szdepw ty esp opgtw'd dple"); And I am trying to use str_replace like this: $new_message = str_replace( array('l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','a','b','c','d','e','f','g','h','i','j','k'), array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'), $message); The result should be A good glass in the bishop's hostel in the devil's seat , but instead, I get p voos vlpss

This question already has an answer here: How do I replace certain parts of my string? 5 answers I want to be able to replace spaces with - but also want to remove commas and question marks. How can I do this in one function? So far, I have it replacing spaces: str_replace(" ","-",$title) You can pass arrays as parameters to str_replace() . Check the manual . // Provides: You should eat pizza, beer, and ice cream every day $phrase = "You should eat fruits, vegetables, and fiber every day."; $healthy = ["fruits", "vegetables", "fiber"]; $yummy = ["pizza", "beer", "ice cream"]; $newPhrase = str

Can anyone give me a quick summary of the differences please? To my mind they both do the same thing? Thanks str_replace replaces a specific occurrence of a string, for instance "foo" will only match and replace that: "foo". preg_replace will do regular expression matching, for instance "/f.{2}/" will match and replace "foo", but also "fey", "fir", "fox", "f12", etc. [EDIT] See for yourself: $string = "foo fighters"; $str_replace = str_replace('foo','bar',$string); $preg_replace = preg_replace('/f.{2}/','bar',$string); echo 'str_replace: ' . $str_replace . ', preg_replace: ' . $preg_replace;

I want to use str_replace or its similar alternative to replace some text in JavaScript. var text = "this is some sample text that i want to replace"; var new_text = replace_in_javascript("want", "dont want", text); document.write("new_text"); should give this is some sample text that i dont want to replace If you are going to regex, what are the performance implications in comparison to the built in replacement methods. Using regex for string replacement is significantly slower than using a string replace. As demonstrated on JSPerf , you can have different levels of efficiency for creating a

I'm trying to replace parts of my string. But I met a problem when my search string start with same character: $string = "Good one :y. Keep going :y2"; $str = str_replace(array_keys($my_array), array_values($my_array), $string); $my_array= array(":y" => "a", ":y2" => "b"); ouput: Good one a. Keep going a2 I need my str_replace() to match the word correctly/exactly. Besides that you should define your array first before you use it, this should work for you: $str = strtr($string, $my_array); Your problem is that str_replace() goes through the entire string and replaces everything it can, you can