33 lines
698 B
PHP
33 lines
698 B
PHP
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<?php
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if(isset($_POST['sub']))
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{
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$txt1=$_POST['n1'];
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$txt2=$_POST['n2'];
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$oprnd=$_POST['sub'];
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if($oprnd=="+")
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$res=$txt1+$txt2;
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else if($oprnd=="-")
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$res=$txt1-$txt2;
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else if($oprnd=="x")
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$res=$txt1*$txt2;
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else if($oprnd=="/")
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$res=$txt1/$txt2;
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}
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?>
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<form method="post" action="">
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Calculator
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<br>
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No1:<input name="n1" value="<?php echo $txt1; ?>">
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<br>
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No2:<input name="n2" value="<?php echo $txt2; ?>">
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<br>
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Res:<input name="res" value="<?php echo $res; ?>">
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<br>
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<input type="submit" name="sub" value="+">
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<input type="submit" name="sub" value="-">
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<input type="submit" name="sub" value="x">
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<input type="submit" name="sub" value="/">
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</form>
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