Can I make a table cell have a different background color if the value =< a particular number with jquery or PHP?

I have an HTML table with a lot of numbers.

Is it possible to have a table cell change background color if the value inside that cell (or column) equals or is less than a particular number?

For example: if ce开发者_运维技巧ll =< "3000", background-color=#FF0000

Is there a way to make this work in reality?

Erik

Here's an example of how to do it with JS/Jquery

$("#Yourtable td").each( function() {
     var thisCell = $(this);
     var cellValue = parseInt(thisCell.text());

     if (!isNaN(cellValue) && (cellValue <=3000)) {
         thisCell.css("background-color","#FF0000");
      }
  }
 )

Try this one

var table = document.getElementById("tableId");
var row = table.rows[rowIndex];
var cell = row.cells[cellIndex];

var cellValue = Number(cell.innerHTML);

if (cellValue > 3000)
  cell.style.backgroundColor = "red";

Yes it is easy to do this sort of thing.

For example, with jQuery, something like this:

$('table.mytable td').each(function() {
  if (this.textContent <= 3000) {
    $(this).css('background', '#FF0000');
  }
}

You could use code like this:

$(".colorMe td").each(function() {
    var val = parseInt(this.innerHTML, 10);
    if (val < 3000) {
        this.style.backgroundColor = "#F00000";
    }
});

See a working example here: http://jsfiddle.net/jfriend00/GAwrB/.

Here is the example //CSS

.lowerthan100{
 background-color:red;
 color:white;   
}
.higherthan100{
 background-color:white;   
 color:red;
}

//JAVASCRIPT

$('#mytable td').each(function() {
    if(parseInt($(this).html())>100){
    $(this).addClass("higherthan100");
    }else if (parseInt($(this).html())<100){
    $(this).addClass("lowerthan100");
    }    
 });

//HTML

<table border="1px" id="mytable">
    <tr><td>99</td><td>101</td></tr>
    <tr><td>200</td><td>50</td></tr>
</table>

You can populate more class in CSS and else if statements, if you need more conditions.

Here is the live example http://jsfiddle.net/kayadiker/DL6U2/2/