How To PHP - PHP Technology, PHP Tutorial, Database Tutorials, CMS System » Easy PHP

How to Stop SQL Injection in MYSQL?

om — Sun, 09 Aug 2009 18:50:21 +0000

Every PHP-MYSQL programmer need to know Anti-SQL Injection.

Please take a look at very simple function which can save your database!!


 
function ClearInput($dirty){
 
	if (get_magic_quotes_gpc()) {
 
	$clean = mysql_real_escape_string(stripslashes($dirty));
 
	}else{
 
	$clean = mysql_real_escape_string($dirty);
 
	}
	return $clean;
 
}
 
?>

How to Redirect with PHP?

om — Fri, 31 Jul 2009 00:13:18 +0000

You need to replace the URL above with the URL you wish to direct to.
Use this simple PHP script to redirect a user from the page they entered to a different web page.

View Code PHP


header( 'Location: http://www.phpmind.com.com/blog/' ) ;
?>

How to display certain number of words from a record?

om — Fri, 15 May 2009 17:49:44 +0000

I got good php tutorial to display certain number of words from database; in place of Database record you can use any other regular string.

View Code PHP


$text = $row_recap['text'];
if (strlen($text) > 300) {
$ext = "... read more";
} else {
$ext = "";
}
function elliStr($s,$n) {
for ( $x = 0; $x < strlen($s); $x++ ) {
$o = ($n+$x >= strlen($s)? $s : ($s{$n+$x} == " "?
substr($s,0,$n+$x) . "..." : ""));
if ( $o!= "" ) { return $o; }
}
}
 
echo (elliStr("$text", 300)) . $ext;
?>

How to remove HTML Tags from string?

om — Fri, 15 May 2009 16:12:04 +0000

If your strings have image code, any html code or DIV code you can easily remove using this code.

View Code PHP


$str = preg_replace("/<.*?>/", "", $str);
?>

Hope this little code will be useful for you.

How to display limited characters?

om — Fri, 15 May 2009 16:05:52 +0000

To display limited characters from database or from string there is a ready made function available in php it is called – substr ( string string, int start [, int length])

View Code PHP


$mysite = "phpmind.com";
$string = substr($mysite, 0,7);
echo $string;
?>

Out put will be – phpmind

How to display random record with PHP AND MYSQL?

om — Fri, 15 May 2009 15:20:49 +0000

Here is very simple way to display random records from MYSQL using PHP.

View Code MYSQL

SELECT * FROM TableName ORDER BY RAND() LIMIT 0,1