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Home/ Questions/Q 7786743
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Editorial Team
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Editorial Team
Asked: June 1, 20262026-06-01T20:28:06+00:00 2026-06-01T20:28:06+00:00

I have a textbox that is an optional field for users to enter a

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I have a textbox that is an optional field for users to enter a number in to. If there is a number in there, I want to check to make sure it is less than 500 and then do something with it.

Here is what I am currently doing:

if($textbox!="" && <=500)
{
//action here
}

I tried replacing && with andif but still get an error Parse error: syntax error, unexpected T_IS_SMALLER_OR_EQUAL

What’s the easiest way to do this?

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  1. Editorial Team
    Editorial Team
    2026-06-01T20:28:08+00:00Added an answer on June 1, 2026 at 8:28 pm

    You need to use the variable in both statements
    preg_match(‘/\d/’, $textbox ) == 1 will make sure it’s an int

    if($textbox!="" && $textbox <= 500 && preg_match('/\d/', $textbox ) == 1)
    {
    //action here
    }
    
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