Defining class name using php and regex matching in HTML

Question

I want create an dynamic HTML page were the class name is defined by the php program

My code:

<?php

 error_reporting(E_ALL);
 ini_set("display_errors", 1);
?>
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function hideTd(){
    var elements = document.getElementsByClassName("ca");
    for(var i = 0, length = elements.length; i < length; i++) {
          elements[i].style.display = 'none';
    }
  }
</script>
</head>
<body onload="hideTd()">
<select name="retailerselect" id="retailerselect" onchange="retailerSelect()" width: 66px;> 
  <option selected="selected" size="10" >--SELECT--</option>
  <option class="ca">hi</option>
  <option class="ca">this</option>  
          <?php $connect = " yes-ad";?>
                <option class="<?php echo $connect;?>"> <?php echo $connect;?> </option>

  </select>
 </body>
  </html>

I the HTML script i would have hide the value of option tag in the class "ca"

Input:

$connect:"yes-ad"

Output:

class="ad" value in the option ="yes-ad"

Sorry if my script is wrong i am a newbie in HTML or is there any other way to do this

Edit: Simplified the script

The Output iam getting now

enter image description here

I want it to show yes-ad with its class

I do not at all understand what you are trying to do but the variable definition ` $connect = "yes-ad" ` in your code is outside of the php tags <?php and ?>. — Bowdzone
– Bowdzone, Commented Feb 4, 2015 at 7:21
The input for $connect will be given from python variable i have to match the variable with reg-ex the matched variable should be given to class and the whole variable should go to value — user4232817
– user4232817, Commented Feb 4, 2015 at 7:28

lyd600lty · Accepted Answer · 2015-02-04 07:40:47Z

3

The php code is wrong. There should not be { and } .Just remove them.

And to change the classname, just do like this:

<option class="<?php echo $connect;?>">....</option>

edited Feb 4, 2015 at 7:40

answered Feb 4, 2015 at 7:34

lyd600lty

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6 Comments

lyd600lty Over a year ago

@VigneshKalai You want to change the class name?

user4232817 Over a year ago

yes i want to change the class name and assign a value

user4232817 Over a year ago

i want it to be like this <option class="<?php echo $connect;?>"> <?php echo $connect;?> </option> is this possible

lyd600lty Over a year ago

although the code looks not beauty, but it works, you can do this.

user4232817 Over a year ago

But nothing is shown only --select-- is shown the drop down

|

talsibony · Accepted Answer · 2015-02-04 07:47:17Z

1

<?php

 error_reporting(E_ALL);
 ini_set("display_errors", 1);
?>
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function hideTd(){
    var elements = document.getElementsByClassName("ca");
    for(var i = 0, length = elements.length; i < length; i++) {
          elements[i].style.display = 'none';
    }
  }
</script>
</head>
<body onload="hideTd()">
<select name="retailerselect" id="retailerselect" onchange="retailerSelect()" width: 66px;> 
  <option selected="selected" size="10" >--SELECT--</option>
  <option class="ca">hi</option>
  <option class="ca">this</option>  
          <?php $connect = " yes-ad";?>
                <option class="<?php echo $connect;?>"> <?php echo $connect;?> </option>

  </select>
 </body>
  </html>

edited Feb 4, 2015 at 7:47

answered Feb 4, 2015 at 7:27

talsibony

8,7966 gold badges49 silver badges48 bronze badges

6 Comments

user4232817 Over a year ago

<option class="<?php echo $connect?>"> <?php echo $connect?> </option> is this possible

talsibony Over a year ago

@yd600lty like he said there is no need for the brackets

talsibony Over a year ago

@VigneshKalai you should look on PHP file as HTML only that you can inject PHP code when you open PHP tag <?php ?> there is also short tag support and can be enabled in the php.ini config file, these short tag make your coding easier and shorter,e.g. <?=$param?> will do the same thing as <?php echo $param?>

talsibony Over a year ago

in case you dont see anything it probably fatal error, and display errors is disabled, add the following lines to the top of your page: error_reporting(E_ALL); ini_set("display_errors", 1);

talsibony Over a year ago

because of this JS line: elements[i].style.display = 'none'; It hides all ca classes

|

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