Codeigniter is best!!!

CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. If you’re a developer who lives in the real world of shared hosting accounts and clients with deadlines, and if you’re tired of ponderously large and thoroughly undocumented frameworks, then CodeIgniter might be a good fit.

Pros :

1. Zero configuration.
2. No need of shell access.
3. Simple
4. Extensible
5. Clear, thorough documentation.

Database using simple PHP file without the help of shell access or phpmyadmin

<?php

backup_tables(‘hostname’,’username’,’password’,’db_name’);

/* backup the db OR just a table */

function backup_tables($host,$user,$pass,$name,$tables = ‘*’)

{

$return=”“;

$link = mysql_connect($host,$user,$pass);

if (!$link) {

    die(‘Could not connect: ’ . mysql_error());

}

mysql_select_db($name,$link);

//get all of the tables

if($tables == ‘*’)

{

$tables = array();

$result = mysql_query(‘SHOW TABLES’);

while($row = mysql_fetch_row($result))

{

$tables[] = $row[0];

}

#

}

else

{

$tables = is_array($tables) ? $tables : explode(‘,’,$tables);

}

//cycle through

foreach($tables as $table)

{

$result = mysql_query(‘SELECT * FROM ‘.$table);

$num_fields = mysql_num_fields($result);

//$return.= ‘DROP TABLE ‘.$table.’;’;

$row2 = mysql_fetch_row(mysql_query(‘SHOW CREATE TABLE ‘.$table));

$return.= “nn”.$row2[1].”;nn”;

for ($i = 0; $i < $num_fields; $i++) 

{

while($row = mysql_fetch_row($result))

{

$return.= ‘INSERT INTO ‘.$table.’ VALUES(‘;

for($j=0; $j<$num_fields; $j++) 

{

$row[$j] = addslashes($row[$j]);

$row[$j] = ereg_replace(“n”,”\n”,$row[$j]);

if (isset($row[$j])) { $return.= ‘”’.$row[$j].’”’ ; } else { $return.= ‘”“’; }

if ($j<($num_fields-1)) { $return.= ‘,’; }

}

$return.= “);n”;

}

}

$return.=”nnn”;

}

//save file

$handle = fopen(‘mmmm/db-backup-‘.time().’-‘.(md5(implode(‘,’,$tables))).’.sql’,’w+’);

fwrite($handle,$return);

fclose($handle);

}

?>

PHP Random password generator function

<?php
 
function generatePassword($length=9, $strength=0) {
	$vowels = 'aeuy';
	$consonants = 'bdghjmnpqrstvz';
	if ($strength & 1) {
		$consonants .= 'BDGHJLMNPQRSTVWXZ';
	}
	if ($strength & 2) {
		$vowels .= "AEUY";
	}
	if ($strength & 4) {
		$consonants .= '23456789';
	}
	if ($strength & 8) {
		$consonants .= '@#$%';
	}
 
	$password = '';
	$alt = time() % 2;
	for ($i = 0; $i < $length; $i++) {
		if ($alt == 1) {
			$password .= $consonants[(rand() % strlen($consonants))];
			$alt = 0;
		} else {
			$password .= $vowels[(rand() % strlen($vowels))];
			$alt = 1;
		}
	}
	return $password;
}

PHP Simple CAPTCHA CODE using SESSION

Create this file :

eg : captcha.php

<?php
session_start();
$ranStr = md5(microtime());
$ranStr = substr($ranStr, 0, 6);
$_SESSION[‘cap_code’] = $ranStr;
$newImage = imagecreatefromjpeg(“cap_bg.jpg”);
$txtColor = imagecolorallocate($newImage, 0, 0, 0);
imagestring($newImage, 5, 5, 5, $ranStr, $txtColor);
header(“Content-type: image/jpeg”);
imagejpeg($newImage);
?>

FORM like this

<form action=”” method=”post”>
<label>Name:</label><br/>
<input type=”text” name=”name” id=”name”/>
<label>Message:</label><br/>
<textarea name=”msg” id=”msg“></textarea>
<label>Enter the contents of image</label>
<input type=”text” name=”captcha” id=”captcha” />
<img src=’captcha.php’ />
<input type=”submit” value=”Submit” id=”submit”/>
</form>

ACTION PAGE : 

<?php
if ($_SERVER[‘REQUEST_METHOD’] == ‘POST’)
{
if ($_POST[‘captcha’] == $_SESSION[‘cap_code’]) 
{
// Captcha verification is Correct. Do something here!
}
else 
{
// Captcha verification is wrong. Take other action
}
}
?>

Thank you.