i had made a calculator form in html/css & javascipt but i need a
little help for it to work by embedding php on it.it is indicated in
our project that it is compulsary to use pure php codes on the
mathematical operations, please help me. here is my code to be
embedded with php:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-
transitional.dtd">
<html xmlns="
http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Machine Problem #1: Calculator</title>
<script language="javscript" type="text/javascript">
<!--
function addbool(){
calc.txtInput.value = '-'+calc.txtInput.value;
}
function resetform(){
calc.bool.disabled = 0;
calc.decimal.disabled = 0;
calc.add.disabled = 0;
calc.subtract.disabled = 0;
calc.multiply.disabled = 0;
calc.divide.disabled = 0;
}
function passval(){
calc.txtStored.value = calc.txtInput.value;
calc.txtInput.value = "";
}
function disablebtn(){
calc.divide.disabled = 1;
calc.multiply.disabled = 1;
calc.subtract.disabled = 1;
calc.add.disabled = 1;
calc.decimal.disabled = 0;
}
//-->
</script>
<style type="text/css">
input.field{
width:100%;
height:30px;
font-family:Verdana, Arial, Helvetica, sans-serif;
font-size:18px;
text-align:right;
}
.btn{
width:40px;
height:40px;
}
.btn0{
width:100%;
height:40px;
}
</style>
</head>
<body>
<form id="form1" name="calc" method="get" action="">
<table width="100%" border="0">
<tr>
<td align="center" valign="middle"><table width="180"
border="0">
<tr>
<td colspan="4" align="center" valign="middle"><input
name="txtInput" type="text" class="field" id="txtInput"
style="width:100%;" maxlength="12"/>
<input type="hidden" name="txtStored" id="txtStored"/>
<input type="hidden" name="txtTypeof" id="txtTypeof"/>
</td>
</tr>
<tr>
<td align="center" valign="middle"><label>
<input name="7" type="button" class="btn" id="7"
value="7" OnClick="calc.txtInput.value += '7'"/>
</label></td>
<td align="center" valign="middle"><input name="8"
type="button" class="btn" id="8" value="8"
OnClick="calc.txtInput.value += '8'"/></td>
<td align="center" valign="middle"><input name="9"
type="button" class="btn" id="9" value="9"
OnClick="calc.txtInput.value += '9'"/></td>
<td align="center" valign="middle"><input name="divide"
type="button" class="btn" id="divide" value="/" OnClick="disablebtn
(); passval(); calc.txtTypeof.value = 'divide';"/></td>
</tr>
<tr>
<td align="center" valign="middle"><input name="4"
type="button" class="btn" id="4" value="4"
OnClick="calc.txtInput.value += '4'"/></td>
<td align="center" valign="middle"><input name="5"
type="button" class="btn" id="5" value="5"
OnClick="calc.txtInput.value += '5'"/></td>
<td align="center" valign="middle"><input name="6"
type="button" class="btn" id="6" value="6"
OnClick="calc.txtInput.value += '6'"/></td>
<td align="center" valign="middle"><input
name="multiply" type="button" class="btn" id="multiply" value="*"
OnClick="disablebtn(); passval(); calc.txtTypeof.value
= 'multiply';"//></td>
</tr>
<tr>
<td align="center" valign="middle"><input name="3"
type="button" class="btn" id="3" value="1"
OnClick="calc.txtInput.value += '1'"/></td>
<td align="center" valign="middle"><input name="2"
type="button" class="btn" id="2" value="2"
OnClick="calc.txtInput.value += '2'"/></td>
<td align="center" valign="middle"><input name="1"
type="button" class="btn" id="1" value="3"
OnClick="calc.txtInput.value += '3'"/></td>
<td align="center" valign="middle"><input
name="subtract" type="button" class="btn" id="subtract" value="-"
OnClick="disablebtn(); passval(); calc.txtTypeof.value
= 'subtract';"//></td>
</tr>
<tr>
<td align="center" valign="middle"><input name="0"
type="button" class="btn" id="0" value="0"
OnClick="calc.txtInput.value += '0'"/></td>
<td align="center" valign="middle"><input name="bool"
type="button" class="btn" id="bool" value="+/-" OnClick="addbool
();this.disabled=1;"/></td>
<td align="center" valign="middle"><input name="decimal"
type="button" class="btn" id="decimal" value="."
OnClick="this.disabled=1; calc.txtInput.value += '.'"/></td>
<td align="center" valign="middle"><input name="add"
type="button" class="btn" id="add" value="+" OnClick="disablebtn();
passval(); calc.txtTypeof.value = 'add';"//></td>
</tr>
<tr>
<td colspan="2" align="center" valign="middle"><input
name="reset" type="reset" class="btn0" id="reset" value="CE"/></td>
<td colspan="2" align="center" valign="middle"><input
name="equal" type="submit" class="btn0" id="equal" value="=" /></td>
</tr>
</table>
<br /></td>
</tr>
</table>
</form>
</body>
</html>
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