what is the php(hypertext preprocessor) codes for basic calculator with

  • Thread starter Thread starter Edrew c
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Edrew c

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clear(erase) function? what is the php(hypertext preprocessor) codes for basic calculator operations(+(addition),-(minus),x(multiply),/(divide),+/-(negative number),=(equals)) with clear(erase/CE) function?please help me
here is the code of operations in html and javascript which php codes will be used:
<!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="res
 


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