Resizing Iframe via PHP

enoctis · 11-25-2006, 10:06 AM

I have created an iframe in an HTML file that pulls up a PHP file & have a javascript code that will automatically resize the Iframe according to it's content. The problem is that the code I have requires the use of an onload event handler utilized in a body tag, & the PHP file contains some header information, which is causing errors.

The warning states that the PHP file can't utilize it's header information because it has already been called (I imagine from the onload event handler). Is there any way around this?

The code in the HTML file looks like so:
<iframe name="main" id="dynamIframe" src="home.html" height="*" scrolling="no" width="100%" frameborder="0"></iframe>

Then the code (in HTML format) that I am attempting to use in the PHP looks like so (yes, I have to convert it... that's not the problem):
<script>
function resizeToContent(){
var x =0;
var y =this.document.body.scrollHeight;
while (x < y){
x+=1;
}
parent.document.getElementById("dynamIframe").style.height=x+20
}
</script>
<body onload="resizeToContent()">

Again, I can get the code to work in PHP, but when loaded it pops up with several warnings about the header information. If you need to see what the actual warning says I can get that information to you, but am limited on time at the current moment.

Thanks for any help!

**DJ-Zep** · 11-27-2006, 12:50 PM

Have you tried removing the onload function just to see if it is the problem?

enoctis · 12-27-2006, 05:40 PM

without the onload event i don't get any errors. sorry for the delayed response. i posted that before i went to the field; im in the military.

**DJ-Zep** · 01-01-2007, 02:03 PM

Try changing onload to onmouseover.

11-25-2006, 10:06 AM	#1 (permalink)
enoctis Registered User Join Date: Aug 2005 Location: Ft. Hood, TX Posts: 59 OS: WinXP.pro My System	Resizing Iframe via PHP I have created an iframe in an HTML file that pulls up a PHP file & have a javascript code that will automatically resize the Iframe according to it's content. The problem is that the code I have requires the use of an onload event handler utilized in a body tag, & the PHP file contains some header information, which is causing errors. The warning states that the PHP file can't utilize it's header information because it has already been called (I imagine from the onload event handler). Is there any way around this? The code in the HTML file looks like so: <iframe name="main" id="dynamIframe" src="home.html" height="*" scrolling="no" width="100%" frameborder="0"></iframe> Then the code (in HTML format) that I am attempting to use in the PHP looks like so (yes, I have to convert it... that's not the problem): <script> function resizeToContent(){ var x =0; var y =this.document.body.scrollHeight; while (x < y){ x+=1; } parent.document.getElementById("dynamIframe").style.height=x+20 } </script> <body onload="resizeToContent()"> Again, I can get the code to work in PHP, but when loaded it pops up with several warnings about the header information. If you need to see what the actual warning says I can get that information to you, but am limited on time at the current moment. Thanks for any help!

11-27-2006, 12:50 PM	#2 (permalink)
DJ-Zep Design Team Join Date: Mar 2006 Location: Philadelphia Posts: 1,541 OS: Windows Vista Home Premium (x64) My System	Have you tried removing the onload function just to see if it is the problem? __________________ Nice music blog Nvu \|\| Notepad++ \|\| Apache \|\| PHP \|\| Keep TSF Alive "The great thing about a computer notebook is that no matter how much you stuff into it, it doesn't get bigger or heavier."

12-27-2006, 05:40 PM	#3 (permalink)
enoctis Registered User Join Date: Aug 2005 Location: Ft. Hood, TX Posts: 59 OS: WinXP.pro My System	yep without the onload event i don't get any errors. sorry for the delayed response. i posted that before i went to the field; im in the military.

01-01-2007, 02:03 PM	#4 (permalink)
DJ-Zep Design Team Join Date: Mar 2006 Location: Philadelphia Posts: 1,541 OS: Windows Vista Home Premium (x64) My System	Try changing onload to onmouseover. __________________ Nice music blog Nvu \|\| Notepad++ \|\| Apache \|\| PHP \|\| Keep TSF Alive "The great thing about a computer notebook is that no matter how much you stuff into it, it doesn't get bigger or heavier."