PHP remove everything after the last instance of a string

by hometutor

Posted: 9 years ago 5 replies

PROGRAMMING

I did the first instance with preg_replace, tried to loop it with while but it timed out even with a break escape.

Any ideas?

Rick

#instance #php #remove #string

hometutor 9 years ago

Got it

$search_remove = strripos($search,"My string");

$search = substr($search, $search_remove);

echo $search;

Then I'll just remove the final string
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techugo 9 years ago

substr and strrpos would be useful

$until = substr($string, 0, strrpos($string.",", ","));

#programming #code #php
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- hometutor 9 years ago
  
  Originally Posted by techugo
  
  substr and strrpos would be useful
  
  = substr(, 0, strrpos(.",", ","));
  
  #programming #code #php
  
  You guys are so much better at doing stuff on one line than I am. I appreciate all the help.
  
  Rick
  
  Thanks
  
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David Pankhurst

9 years ago

It's an older post, but I thought I'd mention - you seem to be using this code for a search the user can enter. If so, by echoing it unchanged you risk all sorts of problems, since the code is 'live' (it can be run by the browser), like javascript or html.

So before you echo do this at a minimum:

echo htmlentities($search,ENT_QUOTES);

The command htmlentities() turns entered 'live' html into safe code - for example <img> becomes <img> which displays properly, instead of trying to load an image.

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hometutor

9 years ago

Originally Posted by David Pankhurst

It's an older post, but I thought I'd mention - you seem to be using this code for a search the user can enter. If so, by echoing it unchanged you risk all sorts of problems, since the code is 'live' (it can be run by the browser), like javascript or html.

So before you echo do this at a minimum:

echo htmlentities(,ENT_QUOTES);

The command htmlentities() turns entered 'live' html into safe code - for example <img> becomes <img> which displays properly, instead of trying to load an image.

Woe that one's new to me thank you

Rick

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PHP remove everything after the last instance of a string

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