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PHP and javascript problems in dynamic adding

Discussion in 'PHP' started by sweetguyzzz, Feb 4, 2010.

0
  1. #1
    I use a form to input some values but I have a one field where the user have right to put unlimited values so I use the dynamic adding javascript to add these fields.

    Dynamic adding script is working but the fields which is added in the form through javascript having a problem. The fields are adding with the default value of a "$phpvariable" instead of being empty. In dynamic adding I use the attribute value='$phpvariable'. So this is because of value attribute but it must show an empty field becz $phpvariable have no initial value so this field must be empty but its showing this value so can anybody solve my problem please ??

    MY JAVASCRIPT IS javascript.js:
    function AddFields() {
var MainDiv = document.getElementById('MoreFunnyImages');	//for getting the element(div) from where to start putting more fields
var AddFields = document.getElementById('NoofFunnyImages').value;	//for getting number of fields to be added
var PreviousNoOfFields = document.getElementById('FunnyImagesCount');	//this is to get the value of field which have saved the number which is given before
var NewDivIdName = "divFunnyImage";		//to get the id of div which have to be removed or been added


for (j=1;j<=PreviousNoOfFields.value;j++) {					//loop is for removing previous given DIVS
  var OldDiv = document.getElementById(NewDivIdName+j);		//getting the name of previous DIVS by help of there ids
  MainDiv.removeChild(OldDiv);								//removing that DIV from the parent DIV
}
PreviousNoOfFields.value = AddFields;	//Now we are assigning new value to the previous value variable so next time this amount of divs will be removed


if (AddFields && AddFields > 0) {
  for (i=1;i<=AddFields;i++) {		//for loop continue till the given value becomes equal
	var NewDiv = document.createElement('div');	//gving that what element to be created, we give DIV
	NewDiv.setAttribute("id",NewDivIdName+i);	//setting id attribute for the div
	NewDiv.innerHTML = "Alt Tag "+i+":<input type='text' name='alt"+i+"' value='$alt"+i+"' class='field' /><br /><br />";
	MainDiv.appendChild(NewDiv);				//from where to print these div we give a variable.appendChild function with attribute of newdivname
  }//loop bracket closes here
}//if condition closes here
}//function closes here
    Code (markup):
    and MY PHP FORM SCRIPT IS form.php:
    <?php

echo "<html>
<head>
<script src='javascript.js' type='text/javascript'></script>
</head>
<body>

<form name='AddFunnyImages' enctype='multipart/form-data' method='post' action='?action=add'>

Number of Images:<input id='NoofFunnyImages' type='text' name='imagesfield' value='$imagesfield' /><input id='FunnyImagesCount' type='hidden' name='countfield' value='0' />
<input type='button' value='Submit' onclick='AddFields()' />
<div id='MoreFunnyImages'></div><!--All of The Images Browse Button Will Display in This DIV-->
<input type='submit' name='submit' value='Go..' />
</form>
</body>
</html>";
?>
    PHP:

     
    sweetguyzzz, Feb 4, 2010 IP
  2. SmallPotatoes

    SmallPotatoes Peon

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    #2
    value='<?= $imagesfield ?>'
     
    SmallPotatoes, Feb 4, 2010 IP
  3. v368

    v368 Guest

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    #3
    in form.php change
    <input type='button' value='Submit' onclick='AddFields()' />
    to <input type='button' value='Submit' onclick='AddFields(\'$phpvalue\')' />

    js function change to
    function AddFields(value) {
    .........
    NewDiv.innerHTML = "Alt Tag "+i+":<input type='text' name='alt"+i+"' value='"+value+i+"' class='field' /><br /><br />";

    .........
    }

    make sure value you parse into AddFields is a string.
     
    v368, Feb 4, 2010 IP