echoCarlos Posted April 8, 2011 Share Posted April 8, 2011 my first attempt at making a php script, included error handling incase the person dint pass in an integer. any comments / suggestions would be highly appreciated as im still learning! <html> <head> <title>Basic Calculator</title> </head> <style type="text/css"> label { width: 4em; float: left; text-align: right; margin-right: 0.5em; display: block } .submit input { margin-left: 4.5em; } input { color: #781351; background: #fee3ad; border: 1px solid #781351 } .submit input { color: #000; background: #ffa20f; border: 2px outset #d7b9c9 } fieldset { border: 1px solid #781351; width: 20em } legend { color: #fff; background: #ffa20c; border: 1px solid #781351; padding: 2px 6px } </style> <body> <form method="post" action="#"> <fieldset> <legend>Basic Maths Form</legend> <p> <label>First:</label> <input type="text" name="sum1" value="" /> </p> <p> <label>Math: </label> <select name='calculate'> <option value='null'>Choose...</option> <option value='add'>+</option> <option value='multiply'>x</option> <option value='subtract'>-</option> <option value='divide'>/</option> </select> </p> <p> <label>Second: </label> <input type="text" name="sum2" value="" /> </p> <b>Answere: </b> <?php if(isset($_POST['sum1']) && isset($_POST['sum2']) && isset($_POST['calculate'])) { $sum1 = strip_tags($_POST['sum1']); $sum2 = strip_tags($_POST['sum2']); $task = $_POST['calculate']; if(!is_numeric($sum1) || !is_numeric($sum2)) { echo 'oh noes! it appears you dint enter a valid number.'; } else { switch($task) { case 'add': echo $sum1 + $sum2; break; case 'multiply': echo $sum1 * $sum2; break; case 'subtract': echo $sum1 - $sum2; break; case 'divide': echo $sum1 / $sum2; break; default: echo 'OoOops!'; break; } } } ?> <p> <input type="submit" name="submit" value="Calculate" /> </p> </fieldset> </form> </body> </html> Quote Link to comment https://forums.phpfreaks.com/topic/233044-simple-php-calculator/ Share on other sites More sharing options...
dawsba Posted April 8, 2011 Share Posted April 8, 2011 heres some code i wrote awhile ago, it'll need some cleaning and you'll have to work some bits out html: <? if(!isset($iiX)){$iiX=1;} ?> <form name="memnum" action="?ref=<?= $iiX; ?><?= $eXtra; ?>" enctype="multipart/form-data" method="post"> <table align="center"> <tr> <td colspan="3"><center><p><?= $title; ?></p></center></td> </tr> <tr> <td colspan="3"> <? if(strtolower($kspecial) != 'password'){$kspecial = 'text';} ?> <input type="<?= $kspecial; ?>" name="pad" id="rfid" class="memnumfield" width="32" height="30"/> </td> </tr> <script> document.memnum.pad.focus(); document.memnum.pad.select(); </script> <? for($i = 1; $i <= 10; $i++) { if($i == 10 || $i == 7 || $i == 4 || $i == 1) { echo "<tr>"; } if($i == 10) { echo " <td> <input name=submitmem type=\"submit\" class=\"keypad_button\" value=\"ENTER\"> </td> <td align=center> <input type=\"button\" class=\"keypad_button\" name=\"0\" value=\"0\" onclick=\"document.memnum.pad.value = document.memnum.pad.value+'0'\" onclick=\"goCheck(this)\"> </td> <td> <input type=\"button\" class=\"keypad_button\" value=\"RESET\" onclick=\"document.memnum.pad.value = ''\"> </td> "; } else { echo " <td> <input type=\"button\" class=\"keypad_button\" size=\"22\" name=\"".$i."\" value=\"".$i."\" onclick=\"document.memnum.pad.value = document.memnum.pad.value+'".$i."'\" onclick=\"goCheck(this)\"> </td> "; } if($i == 9 || $i == 6 || $i == 3 || $i == 10){echo "</tr>";} } echo " <td colspan=\"3\"> <input type=\"button\" class=\"keypad_button\" size=\"66\" name=\"Cancel\" value=\"Cancel\" style=\"width:335px; height:35px;\" onclick=\"window.location='?ref=0'\"> </td> "; ?> <tr><td colspan="3"> </td></tr> </table> </form> Quote Link to comment https://forums.phpfreaks.com/topic/233044-simple-php-calculator/#findComment-1198571 Share on other sites More sharing options...
son0fhobs Posted April 24, 2011 Share Posted April 24, 2011 my first attempt at making a php script, included error handling incase the person dint pass in an integer. Search for javascript form validation and php sanitize forms. Easiest way is to just search for a sample script or plugin and edit for your needs. Quote Link to comment https://forums.phpfreaks.com/topic/233044-simple-php-calculator/#findComment-1205431 Share on other sites More sharing options...
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