In PHP, strpos() fails to find double quote ('"') in string

php strpos
Daniel Bingham picture Daniel Bingham · Jan 31, 2010 · Viewed 7.9k times · Source

Both this:

echo 'Tok: '.$tok.' Strpos: '.strpos($tok, "\"").' length: '.strlen($tok).'<br>';

And this:

echo 'Tok: '.$tok.' Strpos: '.strpos($tok, '"').' length: '.strlen($tok).'<br>';

Result in the following output:

Tok: "fresh Strpos: length: 11

Strpos is failing completely to find the double quote, it returns false (I checked with strpos() === false). Can someone tell me what's going on here? I can find no documentation suggesting that strpos can't handle double quotes, why isn't it finding it? I am at my wits end.

Answer

Pekka picture Pekka · Jan 31, 2010

Are you 1000% sure that the double quote in $tok is actually a literal " and not a HTML entity? Can you check your HTML code?

Related questions

Using an array as needles in strpos

How do you use the strpos for an array of needles when searching a string? For example: $find_letters = array('a', 'c', 'd'); $string = 'abcdefg'; if(strpos($string, $find_letters) !== false) { echo 'All the letters are found in the string!…

Read More
PHP check if file contains a string

I'm trying to see if a file contains a string that is sent to the page. I'm not sure what is wrong with this code: ?php $valid = FALSE; $id = $_GET['id']; $file = './uuids.txt'; $handle = fopen($file, "r"); if ($…

Read More
Warning: array_push() expects parameter 1 to be array

This is my code, and when I run this function I get this :Warning: array_push() expects parameter 1 to be array However I define $printed as an array prior to starting. $printed = array(); function dayAdvance ($startDay, $endDay, $weekType){ $newdateform = array( …

Read More