how to start PHP

[ugly_cat] · 01-10-2008, 12:15 AM

today i downloaded Wamp5 ..about i want to know php programming..and then.,now how can i start it? ...
thanks...

sleepyhead · 01-10-2008, 03:31 AM

<?php

there.

munlytobako · 01-11-2008, 04:52 AM

use wamp so that you can run it on your localhost.

Find tutorials on web, practice PHP using your text editor (dreamweaver), save it on wamp folder, run it on localhost.

That's it!

AS-4 · 01-11-2008, 06:07 AM

Start WAMP5 or where to start in PHP programming?

[ugly_cat] · 01-12-2008, 01:45 AM

ya..,thanks to all..,
but,i want to know..one fact..
when i did start the html web pages..

<html>

.......xxx...xx....xx

</html>

and then,.i saved "index.html" ..finished..webpages..
now..how can i start and save index file with PHP..,
i am just learner at PHP..

Zebedee · 01-12-2008, 03:21 AM

Instead of putting .html on the end of the file name, put .php
NB. Although I recommend saving your pages as .html and parsing them as .php however, this will render the code in shades of blue and as a new php coder perhaps it best to leave as php to make it easier to read code.
Whenever you want to write php code put "<?php" then start code on next line. At the end of the php code put "?>".

Also, don't get into the habbit of having both a index.html page and a index.php page on your root as this will be seen as duplicate content.

andrew247 · 01-12-2008, 12:33 PM

Simple page output:

PHP Code:


			
<?php
// This is a sort of "header", i.e. HTML before the content. I've used concatenation
// (.= joins strings) so that you can still relate to the html structure, 
// although it could just be represented by:
// echo ("<html><head><title>Example Output</title></head><body>");

// \n is a unix new line
$header = "<html>\n";
$header .= "<head>\n";
$header .= "<title>Example Output</title>\n";
$header .= "</head>\n";
$header .= "<body>\n";

$footer = "</body>\n";
$footer .= "</html>\n";

echo($header);
echo("Hello World\n");
echo($footer);
?>

That would output:

HTML Code:

<html>
<head>
<title>Example Output</title>
</head>
<body>
Hello World
</body>
</html>

That is pretty much a basic output.
You can then start using condition statements etc to make it do things if certain things are true.
Once you get into it you can start doing all sorts of things.

Here is some PHP I created to do my physics homework for me - it plots a graph (with error bars calculated and drawn on all points, as well as calculating the centroid, then you can manually change the gradient by certain amounts until you get a best fit line) using data input that I got from a Simple Harmonic Motion experiment (uses GD library to draw lines).
It's only PHP 4 (Awardspace at which it is hosted does not support PHP5 unfortunately, so you won't find public or private specified variables, nor have I used magic __construct() or anything above basic OOP.
It gets the job done quite nicely though, and I have commented the code quite a lot.
Example Output

AS-4 · 01-14-2008, 10:52 AM

I'm not good at PHP either but afaik

$header is a variable right? why do you declare that with different values? when you call $header with an echo command which one do you think will it show? or was that code something I'm not familiar with?

If you save that code as sample.php and run it you'll get a different result as what you've posted, or I did it wrong?

You could try it this way instead

<html>
<head>
<title>My First PHP Page</title>
</head>
<body>
<?php
echo "Hello World!";
?>
</body>
</html>

Which will output

Hello World!

andrew247 · 01-14-2008, 12:47 PM

Quote:

$header is a variable right?

Yes.

Quote:

why do you declare that with different values?

I don't - I just keep lengthening the string.

Quote:

when you call $header with an echo command which one do you think will it show?

It will display all of it.
The concatenation ( .= ) joins strings together, so "<head>\n" is added on to the end of "<html>\n" etc until you have the whole header.

I could have done it the way you suggested, it would have worked just the same, but I don't really like mixing PHP and HTML.
The reason I concatenated it is so that it looked neater, that was all.

(Also I think the structured listing the forum outputs is pretty cool).

AS-4 · 01-14-2008, 12:59 PM

I see now, but how do I run that code? I copy paste it then save as sample.php but it just displays the text inside.

01-10-2008, 12:15 AM	#1 (permalink)
[ugly_cat] Elite Googler Join Date: Mar 2006 Location: MM Posts: 1,789 Thanks: 53 Thanked 55 Times in 52 Posts	how to start PHP today i downloaded Wamp5 ..about i want to know php programming..and then.,now how can i start it? ... thanks...

01-12-2008, 12:33 PM	#7 (permalink)
andrew247 Google Guru Join Date: Oct 2005 Location: c:\GoogleCommunity Posts: 3,368 Thanks: 3 Thanked 12 Times in 12 Posts	Simple page output: PHP Code: <?php // This is a sort of "header", i.e. HTML before the content. I've used concatenation // (.= joins strings) so that you can still relate to the html structure, // although it could just be represented by: // echo ("<html><head><title>Example Output</title></head><body>"); // \n is a unix new line $header = "<html>\n"; $header .= "<head>\n"; $header .= "<title>Example Output</title>\n"; $header .= "</head>\n"; $header .= "<body>\n"; $footer = "</body>\n"; $footer .= "</html>\n"; echo($header); echo("Hello World\n"); echo($footer); ?> That would output: HTML Code: <html> <head> <title>Example Output</title> </head> <body> Hello World </body> </html> That is pretty much a basic output. You can then start using condition statements etc to make it do things if certain things are true. Once you get into it you can start doing all sorts of things. Here is some PHP I created to do my physics homework for me - it plots a graph (with error bars calculated and drawn on all points, as well as calculating the centroid, then you can manually change the gradient by certain amounts until you get a best fit line) using data input that I got from a Simple Harmonic Motion experiment (uses GD library to draw lines). It's only PHP 4 (Awardspace at which it is hosted does not support PHP5 unfortunately, so you won't find public or private specified variables, nor have I used magic __construct() or anything above basic OOP. It gets the job done quite nicely though, and I have commented the code quite a lot. Example Output Last edited by andrew247; 01-12-2008 at 12:39 PM.

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01-10-2008, 03:31 AM	#2 (permalink)
sleepyhead Google Freak Join Date: Jun 2007 Location: Phoenix, Arizona Posts: 498 Thanks: 0 Thanked 5 Times in 5 Posts	<?php there.

01-11-2008, 04:52 AM	#3 (permalink)
munlytobako Senior Googler Join Date: Sep 2007 Location: Nevada Posts: 188 Thanks: 0 Thanked 3 Times in 3 Posts	use wamp so that you can run it on your localhost. Find tutorials on web, practice PHP using your text editor (dreamweaver), save it on wamp folder, run it on localhost. That's it!

01-11-2008, 06:07 AM	#4 (permalink)
AS-4 Senior Googler Join Date: Nov 2007 Posts: 125 Thanks: 0 Thanked 4 Times in 4 Posts	Start WAMP5 or where to start in PHP programming?

01-12-2008, 01:45 AM	#5 (permalink)
[ugly_cat] Elite Googler Join Date: Mar 2006 Location: MM Posts: 1,789 Thanks: 53 Thanked 55 Times in 52 Posts	ya..,thanks to all.., but,i want to know..one fact.. when i did start the html web pages.. <html> .......xxx...xx....xx </html> and then,.i saved "index.html" ..finished..webpages.. now..how can i start and save index file with PHP.., i am just learner at PHP..

01-12-2008, 03:21 AM	#6 (permalink)
Zebedee Noogle Join Date: Jan 2008 Location: Essex, England Posts: 3 Thanks: 0 Thanked 1 Time in 1 Post	Instead of putting .html on the end of the file name, put .php NB. Although I recommend saving your pages as .html and parsing them as .php however, this will render the code in shades of blue and as a new php coder perhaps it best to leave as php to make it easier to read code. Whenever you want to write php code put "<?php" then start code on next line. At the end of the php code put "?>". Also, don't get into the habbit of having both a index.html page and a index.php page on your root as this will be seen as duplicate content.

01-14-2008, 10:52 AM	#8 (permalink)
AS-4 Senior Googler Join Date: Nov 2007 Posts: 125 Thanks: 0 Thanked 4 Times in 4 Posts	I'm not good at PHP either but afaik $header is a variable right? why do you declare that with different values? when you call $header with an echo command which one do you think will it show? or was that code something I'm not familiar with? If you save that code as sample.php and run it you'll get a different result as what you've posted, or I did it wrong? You could try it this way instead <html> <head> <title>My First PHP Page</title> </head> <body> <?php echo "Hello World!"; ?> </body> </html> Which will output Hello World!

01-14-2008, 12:59 PM	#10 (permalink)
AS-4 Senior Googler Join Date: Nov 2007 Posts: 125 Thanks: 0 Thanked 4 Times in 4 Posts	I see now, but how do I run that code? I copy paste it then save as sample.php but it just displays the text inside.

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