I asked this question yesterday: Compare array of words to a textarea input with javascript
Now I want to do the same thing with php...
Is there any easy code for this?
Thanks
UPDATE: I would like to test the textarea input against the array, and if match of bad words found, die();
Thanks
You could try something like this:
$bad_words = array('ring','sarah','chuck');
$intersect = array_intersect(explode(' ', strtolower($_POST['textarea'])), $bad_words);
if(count($intersect)) die('You should wash your mouth out with soap!');
The array_intersect will compare the two different arrays of words and return all of the values that exist in both arrays. Therefore if count($intersect) is anything but 0 (evaluated as a false in this case) then you can exist the script and output an error.
$bad_words = array('first','second','third');
$posted = str_ireplace($bad_words, '****', $posted);
This will replace bad words with '****'
EDIT:
to check if any of words from bad_words exist in a string:
foreach( $bad_words as $bad ){
if( stristr($posted, $bad) !== FALSE )
{
$contains_bad_words = TRUE;
}
}
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