5 Years ago(Updated in 5 Years ago) PHP(Functions) 0(Disable)

Encrypt function return different value with each execute but decrypt function return input value. for example:
first execute: encrypt('hello') => 'axxdfg34', decrypt('axxdfg34') return 'hello'
second execute: encrypt('hello') => 'xvcfghty214s', decrypt('xvcfghty214s') return 'hello'

5 Years ago(Updated in 5 Years ago) PHP(Functions) 0(Disable)

This function is used to find the file extension also you can use pathinfo() function for get information about a file path.

function ext($file_name)
{
   return substr($file_name, strrpos($file_name, '.') + 1);
}

5 Years ago PHP(Functions) 0(Disable)

The best way to determine the character count of a UTF8 string.

function strlen_utf8( $str )
{
   return mb_strlen( $str, 'UTF-8' );
}
 
//or...
function strlen_utf8( $str )
{
   $c = 0;
   $len = strlen( $str );
   for ( $i = 0; $i < $len; $i++ ) {
      //0x80 = 128
      $ord = ord( $str[$i] );
      if ( $ord & 0x80 ) {
         $ord <<= 1;
         while ( $ord & 0x80 ) {
            $i++;
            $ord <<= 1;
         }
 
         $c++;
      }
      else {
         $c++;
      }
   }
 
   return $c;
}

5 Years ago PHP(Functions) 0(Disable)

This function check if an url is valid or not.

function is_valid_url($url)
{
   return preg_match('|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i', $url);
}

5 Years ago PHP(Functions) 0(Disable)

This way useful for create mixed arguments function.

function foo()
{
    $args = func_get_args();
    print_r($args);
}
 
foo(1, 1256, 6, 17); //mixed ...
 
-------------------Out----------------------
Array
(
    [0] => 1
    [1] => 1256
    [2] => 6
    [3] => 17
)

5 Years ago PHP(Functions) 0(Disable)

Resize image function for jpg format. $mood between max and min. if you choose max, this mean max size of image is $ta otherwise min size of image is $ta.

function makeTheThumb( $ppath, $ta, $mood )
{
   list( $w, $h ) = getimagesize( $ppath );
   $orig = imagecreatefromjpeg( $ppath );
   if ( ( strcmp( $mood, 'width' ) == 0 ) || ( ( $w > $h ) ^ ( strcmp( $mood, 'min' ) == 0 ) ) ) {
      $tw = $ta;
      $th = round( $tw * $h / $w );
   }
   else {
      $th = $ta;
      $tw = round( $th * $w / $h );
   }
   $timg = imagecreatetruecolor( $tw, $th );
   imagecopyresampled( $timg, $orig, 0, 0, 0, 0, $tw, $th, $w, $h );
   imageinterlace( $timg, 1 );
   imagejpeg( $timg, 'out.jpg', 100 );
   imagedestroy( $timg );
   return "ENDED;$tw;$th";
}
 
makeTheThumb( 'test.jpg', 150, 'max' );

5 Years ago PHP(Functions) 0(Disable)

This function check if an e-mail address is valid or not.

function valid_email($email)
{
    return preg_match('/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/',
        $email);
}
 
echo valid_email('test@test.com');

5 Years ago PHP(Functions) 0(Disable)

Detect leap year for gregorian and shamsi date.

function gLeapYear($year)
{
    if (($year % 4 == 0) and (($year % 100 != 0) or ($year % 400 == 0)))
        return true;
    else
        return false;
}
 
function sLeapYear($year)
{
    $ary = array(1, 5, 9, 13, 17, 22, 26, 30);
    $b = $year % 33;
    if (in_array($b, $ary))
        return true;
    return false;
}
 
echo sLeapYear(1392).' ';
echo gLeapYear(2013);

5 Years ago(Updated in 5 Years ago) JavaScript 0(Disable)

Image taken from Chart.js

Easy, object oriented client side graphs for designers and developers. "Chart.js"

Address: Chart.js

Features

  • 6 Chart types
  • HTML5 Based
  • Simple and flexible

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