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<!DOCTYPE html> <html> <head> <title>CALCULADORA COM PHP, CSS E HTML</title> <style type="text/css"> fieldset{ width: 130px; height: 130px; background-color: lightblue; border-color: red; } input{ border-color: black; background-color: lightgray; } </style> </head> <body> <h1>CALCULADORA COM PHP</h1> <fieldset> <form method="POST"> N1: <input type="text" name="n1" size="2"><br><br> Op: <input type="text" name="opr" size="2"><br><br> N2: <input type="text" name="n2" size="2"><br><br> <input type="submit" value="Enter"> <?php $a = $_POST['n1']; $b = $_POST['n2']; $op = $_POST['opr']; //$cls = $_POST['clear']; if($op == "limpar" || $op == "LIMPAR") echo " "; /*if($cls) echo " ";*/ if($op == "mod") modl($a, $b); if($op == "%") porcent($a, $b); if($op === "/") div($a, $b); else if($op === "*") mul($a, $b); else if($op === "+") soma($a, $b); else if($op === "-") sub($a, $b); function div($a, $b) { $d = $a / $b; echo "$d"; } function sub($a, $b) { $sb = $a - $b; echo "$sb"; } function mul($a, $b) { $m = $a * $b; echo "$m"; } function soma($a, $b) { $s = $a + $b; echo "$s"; } function porcent($a, $b) { $p = ($a*$b)/100; echo "$p"; } function modl($a, $b) { $md = $a % $b; echo "$md"; } ?> </form> </fieldset> </body> </html>
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