Question

So I am having a similar issue to this post: PHP strpos not working, but not quite.

Here is my situation (from a CodeIgniter application):

$_submit = strtolower($this->input->post('form-submit'));

if(strpos('save', $_submit) !== FALSE){
    // we have to save our post data to the db
}
if(strpos('next'), $_submit) !== FALSE){
    // we have to get the next record from the db
}

The problem is, neither of these actually fire, despite form-submit containing one, or both of those values. The values form-submit receives are: ‘save’, ‘save-next’, and ‘skip-next’ (which I have confirmed by looking at the post data as it comes in). Now for the real head scratcher, I also have this line in the same code chunk:

if ($_submit === 'add-comment'){
    //do something
}

And that works perfectly fine. So === is working as expected, but !== is not?

Answer 1

You are giving arguments wrong to the strpos function…….

$submit = strtolower($this->input->post('form-submit'));

if(strpos($submit,'save') !== FALSE){
    // we have to save our post data to the db
}
if(strpos($submit,'next') !== FALSE){
    // we have to get the next record from the db
}

Please look into the strpos function in php.net manual….first argument is full string and second one is key string

You can find a small example here also.