CODEWITHSUNDEEP
php
Sven Kahn
Sven Kahn

Reputation: 497

Complex php if statement

I'm trying to generate all different combinations for something that have x>=y, x<=y

ex: $abc <= 123 && $abc >= 123 && $abb >= 123 && $abb <= 123 && $acc >= 123

however, I don't want things such as "$abc <= 123 && $abc >= 123" to be saved (I'd want the combination: $abc <= 123 && $abb >= 123 && $acc >= 123 to be saved, no conflicting arguments), so I'm trying to use an if statement to filter them out, sometimes there are multiple conflicting arguments such as "$abc <= 123 && $abc >= 123 && $abb >= 123 && $abb <= 123" but I'm having trouble 

    $string = '$abc <= 123 && $abc >= 123 && $abb >= 123 && $abb <= 123 && $acc >= 123';
     if(substr_count($string, "abc <=") == 0 && substr_count($string, "abc >=") == 1 || substr_count($string, "abc <=") == 1 && substr_count($string, "abc >=") == 0)  {
        echo("hello");
    }

In this statement it won't return hello, which is right, but once you remove one conflicting argument from $string it will return hello, but I don't want this because still another conflicting argument exists. Is it possible to do something like this or I must do something like:

substr_count($string, "abc <=") == 0 && substr_count($string, "abc >=") == 1 && substr_count($string, "abb <=") == 1 && substr_count($string, "abb >=") == 0

Please advise

Sorry if this is a poorly asked question, it's hard to explain

Upvotes: 0

Views: 159

Answers (1)

Jan
Jan

Reputation: 43169

This is what bitmasks are for.

Upvotes: 1

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