Apr 1, 2013 · 76 I need to parse an HTML document and to find all occurrences of string asdf in it. I currently have the HTML loaded into a string variable. I would just like the character position …

Dec 6, 2010 · The strpos function works fine, but if you want to do case-insensitive checking for a word in a paragraph then you can make use of the stripos function of PHP. For example,

strpos returns false if the string is not found, and 0 if it is found at the beginning. Use the identity operator to distinguish the two:

Jun 25, 2018 · 2 What about using just PHP's built in function?! strripos () – Finds the position of the last occurrence of a string inside another string. It is a Case-insensitive. PHP Docs

I improved the code by changing foreach($needle as $k => $query) { if(strpos($haystack, $query, $offset) !== false) return $k; }, so it returns the key of the matching item for further handling.

There's a tradeoff here; strpos reduces the chance of an error-causing typo, but substr theoretically ought to perform better, and I guess that could conceivably matter if your …

1 0 is a possible return value from strpos when it finds a match at the very beginning. In case if the match is not found it returns false (boolean). So you need to check the return value of …

15 strpos () does not return true when it finds a match, it returns the position of the first matching string. Watchout, if the match is a the beginning of the string it will return an index of zero …

Oct 6, 2010 · According to the PHP manual, yes- strpos () is the quickest way to determine if one string contains another. Note: If you only want to determine if a particular needle occurs within …

I noticed a lot of developers are using both strstr and strpos to check for a substring existence. Is one of them preferred and why ?