Php Newbie

i just wanted to ask how much does it take to learn php.

and what do we have to learn with php to be a better webmaster

 

There are some great web resources out there, and some good books too. Was it a bunch of links you wanted, book recommendations, or just an idea on how easy it is?

Because it's very eaesy to learn the basics. First, find a hoster that offers php (they all do, pretty much) if you can't or don't want to install it on your own computer. If you use a hosting company, you upload the files to test them.

Start with the usual helloworld.php :

<?php
echo "Hello World!";
?>

PHP:

then grow from that. I assume you are familiar with HTML? PHP is, I guess, the next step up.

 

Theres been roughly a GAJILLION posts regarding this.. try using the search feature

 

gajillion+1

I'd also like to say that tutorials and snippets such as

<?php
echo "Hello World!";
?>

PHP:

and

<?php
include('somefile.php');
?>

PHP:

are a total waste of using php in the first place, why not just write

Hello World

on an html page and upload it to your server and as for the includes() abuse, php is much more than some glue with which to stick your badly made pages together in an attempt to save you ten minutes

 

In my defence ...

The next step after understanding what "echo" does, is to replace "Hello World" with $foo and $bar. Then muck around with setting those variables so the newbie understands that the output to the page can be altered by changing $foo and $bar. Writing static HTML doesn't help learning PHP.

 

I live under the assumption that my thoughts and intentions don't actually mean anything, it's my actions that count, and while your defense is a good one, it's void, you didn't do any of that.

A 10 minute explanation of how variables and formatting those variables with sprintf ( and complementing functions ) would have been worlds better than what you did, however it still wouldn't really be helpful to someone who doesn't understand what php is or does or what its supposed to ( or can be ) used for, it would be about as much help as static html, oh wait, that's what he got .....writing static html is exactly what you did, it's never going to change and so might aswell be static html ......

 

This is where we differ. I'll take someone step by step, making sure they understand it all along the way. You give them all the answers in one hit.

You have much more patience than I do, which is why you're exceedingly good at this. I remember being confused to death by someone explaining classes and so on, when I first encountered it all - I had to be taken on a journey learning each step.

I envy you

 

gd library-random number & png image create

<?

$imagekod = '';

for ($i = 0; $i < 8; $i++) {

$imagekod .= chr(mt_rand(100,120));
$imagekod=strtoupper($imagekod);
}
// set up image
$height = 30;
$width = 100;
$im = ImageCreate($width, $height);
$white = ImageColorAllocate ($im, 255, 255, 255);
$black = ImageColorAllocate ($im, 128, 0, 0);

// draw on image
ImageFill($im, 0, 0, $black);
// ImageLine($im, 0, 0, $width, $height, $white);
ImageString($im, 300, 15, 10, $imagekod, $white);

// output image
Header ("Content-type: image/png");
ImagePng ($im);

// clean up
ImageDestroy($im);

?> 

PHP:

 

phpinfo samples

<?php
echo "<font color=red> IP ::</font> $REMOTE_ADDR<br>";
$gun=date("D");
$ay=date("n")-1;
$yil=date("Y");
$gun_sayi=date('d');
echo "<font color=red> Date ::</font> $gun_sayi $ay $yil $gun<BR>";
echo "<font color=red> Server Version ::</font> $SERVER_SOFTWARE<br>";
echo "<font color=red> Script Language ::</font> $GATEWAY_INTERFACE<br>";
echo "<font color=red> Command Program Location ::</font> $COMSPEC<br>";
echo "<font color=red> Browser Version ::</font> $HTTP_USER_AGENT<br>";
echo "<font color=red> Windows Folder ::</font> $WINDIR<br>";
echo "<font color=red> Connect Type ::</font> $HTTP_CONNECTION<br>";
echo "<font color=red> Server Name ::</font> $SERVER_NAME<br>";
echo "<font color=red> Accept Coding ::</font> $HTTP_ACCEPT_ENCODING<br>";
echo "<font color=red> File Location and Name ::</font> $PATH_INFO<br>";
echo "<font color=red> Server Port ::</font> $SERVER_PORT<br>";
echo "<font color=red> Referer Page ::</font> $HTTP_REFERER<br>";
?> 

PHP:

 

php form control

/////////////////////////////////////////////////////////////// 
FORM PAGE
///////////////////////////////////////////////////////////////

<form name="form1" method="post" action="check.php">
<table width="50%" border="0" align="center" cellpNameding="0" cellspacing="2">
<tr> 
<td width="43%"><div align="center">Name :</div></td>
<td width="57%"><div align="center"> 
<input name="txt_Name" type="text" id="txt_Name">
</div></td>
</tr>
<tr> 
<td><div align="center">SurName :</div></td>
<td><div align="center"> 
<input name="txt_SurName" type="text" id="txt_SurName">
</div></td>
</tr>
<tr> 
<td colspan="2"><div align="center"> 
<input type="submit" name="Submit" value="Submit">
</div></td>
</tr>
</table>
</form>

///////////////////////////////////////////////////////////////
check.php Page
///////////////////////////////////////////////////////////////
<?php
if(empty($_POST[txt_Name])){
echo("<center><b>Name Field Empty. Go Back Fillng Please.</b></center>");
}elseif(empty($_POST[txt_SurName])){
echo("<center><b>SurName Field Empty. Go Back Fillng Please.</b></center>");
}else{
echo("All Field Full.");
}
?> 

PHP:

 

evident space create random number

$lower = 1; // start number
$upper = 50; // finish number
$random_number = mt_rand($lower, $upper); // select random number 
echo $random_number;

PHP:

 

this is computer uptime

<?php

$uptime_array = explode(" ", exec("cat /proc/uptime"));
$seconds = round($uptime_array[0], 0);
$minutes = $seconds / 60;
$hours = $minutes / 60;
$days = floor($hours / 24);
$hours = floor($hours - ($days * 24));
$minutes = floor($minutes - ($days * 24 * 60) - ($hours * 60));
$seconds = floor($seconds - ($days * 24 * 60 * 60) - ($hours * 60 * 60) -
($minutes * 60));
$uptime_array = array($days, $hours, $minutes, $seconds);

if ($uptime_array[0] == 0) {
if ($uptime_array[1] == 0) {
if ($uptime_array[2] == 0) {
print("This computer is on time: <b>" . $uptime_array[3] . " second</b>");
}

else {
print("This computer is on time: <b>" . $uptime_array[2] . " minute</b>");
}
}

else {
print("This computer is on time: <b>" . $uptime_array[1] . " hour</b>");
}
}

else {
print("This computer is on time: <b>" . $uptime_array[0] . " day</b>");
}
?> 

PHP:

 

random banner show
this is sql query for banners table

CREATE TABLE banners (
id int(11) NOT NULL auto_increment,
url varchar(50) default NULL,
banner varchar(50) default NULL,
PRIMARY KEY (id)
) TYPE=MyISAM;



INSERT INTO banners VALUES (1,'http://fedora.redhat.com','http://destan.sdu.edu.tr/resimler/redhat.jpg');
INSERT INTO banners VALUES (2,'http://www.debian.org','http://destan.sdu.edu.tr/resimler/debian.jpg');
INSERT INTO banners VALUES (3,'http://destan.sdu.edu.tr','http://destan.sdu.edu.tr/resimler/ismail.gif');
INSERT INTO banners VALUES (4,'http://www.suse.de','http://destan.sdu.edu.tr/resimler/suse.png');

PHP:

this is print screen code

<HTML>
<HEAD>
<meta http-equiv="Content-Type" Content="text/html; charset=UTF-8">
<meta http-equiv="Content-Language" Content="tr">
<title>XXXCODER Random Banner</title>
</HEAD>
</HTML>

<?php

mysql_connect("localhost", "username", "password");
mysql_select_db("dbname"); // database name
$sorgu = mysql_query("select * from banners order by rand() Limit 0,2"); // Limit 0 than  2 data fetch
if(!mysql_num_rows($sorgu))
{
echo "No Image";
}
else
{
while($res = mysql_fetch_array($sorgu))
{
$url = $res['url'];
$banner = $res['banner'];
echo "<a href=\"$url\"
target=\"_self\"><img src=\"$banner\" alt=\"\" border=\"0\"></a>";
}
}
?> 

PHP:

 

mail send form

                                                                                                               
<form method="post" action="formmail.php"> 
<input type="text" name="recipient" value="[Your Mail]"> 
<input type="text" name="subject" value="[Subject]"> 
<input type="hidden" name="req" value="[required field]"> 
<input type="submit" value="send">
[back form part add code]
</form> 
--------------------------------------------------------------------------
[ formmail.php ]
<html> 
<head> 
<title>Formmail</title> 
</head> 
<body bgcolor="black"> 

<? 
//---------------------------------- 
// OPTIONAL PARAMETERS 
//---------------------------------- 

// Message header such as "confirm" or "error" 
$headersize="4"; 
$headercolor="Lime"; 
// Message body 
$textsize="3"; 
$textcolor="0000ff"; 
$linkcolor="ffcc99"; 


/*****************************************************/ 
/* YOU DO NOT NEED TO MODIFY ANYTHING BELOW */ 
/***************************************************/ 




if( !empty($HTTP_POST_VARS)) 
{ 
// if any form submission start the process 
function prompt_user($messageheader,$promptmessage) 
{ 
global $l,$goback,$fm_error,$plsfill,$invalidaddress,$fm_confirm,$sent,$unsent,$author; 
global $headersize,$headercolor,$textsize,$textcolor,$linkcolor; 
include("inc/Header.php"); 
echo " 

<center> 
<B><font size=\"$headersize\" color=\"$headercolor\"> 
----------------------------<br> 
:: ::<br> 
----------------------------<br> 
</font> 
<br> 
<font size=\"$textsize\" color=\"$textcolor\"> 
Message Succesfly Send!..</font> 
<br><br> 
<a href='javascript:history.go(-2)'> 
<font size='2' color='$linkcolor'>Back Main</font></a> 
<B></center>"; 
exit; 
} 

// function to check the empty fields 
function check_fields($fieldname,$fieldtype) 
{ 
global $fm_error,$plsfill; 
if (empty($fieldname)) 
{ 
prompt_user("$fm_error","$plsfill <br> * $fieldtype"); 
} 
} 

// function to check the email validity 
function check_email($mailtocheck) 
{ 
global $fm_error,$plsfill,$invalidaddress; 
$mail_test= trim($mailtocheck); 
if (!eregi("^[_\\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\\.)+[a-z]{2,3}$", $mail_test)) 
{ 
prompt_user("$fm_error","$invalidaddress :<br> $mail_test"); 
} 
} 

// check if there are required fields 
if ($req) 
{ 
$requiredfields=explode(",",$req); 
for ($temp=0;$temp<count($requiredfields);$temp++) 
{ 
$requiredfields[$temp]=trim ($requiredfields[$temp]); 
if ($requiredfields[$temp]=="email") 
{ 
check_email("${$requiredfields[$temp]}"); 
} 
else 
{ 
check_fields ("${$requiredfields[$temp]}","$requiredfields[$temp]"); 
} 
} 
} 

/* default values for script will take place in the text form fields */ 
$def[]="subject"; 
$def[]="req"; 
$def[]="recipient"; 

// get the IP and the date 
$ip=getenv("REMOTE_ADDR"); 
$date=date("d-m-Y H:i:s"); 

// message body 
$message=$defaultmessage."\n\n"; 
$message.="From :".$email."\n"; 
$message.="Date :".$date."\n"; 
$message.="IP :".$ip."\n"; 
$message.="------------------------------------\n"; 
foreach($HTTP_POST_VARS as $formfield => $value) 
{ 
$found=0; 
for($i=0;$i<count($def);$i++) 
{ 
if($formfield==$def[$i]) 
{ 
$found=1; 
} 
} 
if(!$found==1) 
{ 
$message.=$formfield." : ".$value."\n"; 
} 
} 
$message.="------------------------------------\n\n\n"; 
$message.=""; 
$headers ="From: $email\n"; 

// check the subject 
if(!$subject) 
{ 
$subject=$defaultsubject; 
} 

// mail the form 
if(@mail($recipient,$subject,$message,$headers)) 
{ 
prompt_user("$fm_confirm","$sent"); 
echo"<center></center>"; 
} 
else 
{ 
prompt_user("$fm_error","$unsent"); 
echo"<center></center>"; 
} 
} 
else 
{ 
echo"<center><font face=System color=lime> <br> 
 Message gonderilmedi!..<br>Fatal ERROR: 000FFFFx000DEEE</font></center>"; 
} 

?> 
</body> 
</html>  

PHP:

to be contunied...

 

omg what the hell are you doing, none of that is usefull to him you're just spamming the forum with useless code, stop it .....

 

These codes of xxxcoder is not helpful at all for a newbie.he is just wasting the spaces.
AlexaCY better downloads some PHP tutorials and read them.it will be more if you get a book on PHP.worx's books are better.

 

lol.. I think this post is the most funny over all the rest.. lol..

 

Probably trying to build up posts. Pretty useless code and irrelevant to the thread.

 

Well, I don't know what my advice is worth since I am also starting to learn PHP but this is my approach. I have some projects in mind but I don't know PHP. So I picked up a book "Beginning PHP5, Apache, And MySQL Web Development (2005)". I chose it because it teaches you PHP and mySQL through the process of creating applications, so you get to see a finished product as you learn. That's how I've learned programming languages before, by actually coding a project. Anyway, I then spent some time installing Apache, PHP and mySQL individually on my laptop so that I can develop on my laptop without having to upload every single program I write to my host to test it. Finally, I read through the forums to figure out the best editor to use and downloaded it. I settled on Notepad++ and PHP Designer because I have commitment issues and like to have options, but I'll probably end up deciding on one and sticking with it.

Now I have started working through the book, typing on all the snippets of code and testing them. Also I will be posting here and asking questions and reading what others post.

Good luck with learning!!

 

I have some tutorials about PHP basics at www.tutbox.com Check it out if u wan