مجموعه کدهای بدرد بخور در php

[djmohammad]

گرفتن آدرس خروجی از صفحه فعلی

function curPageURL() {
 $pageURL = 'http';
 if (!empty($_SERVER['HTTPS'])) {$pageURL .= "s";}
 $pageURL .= "://";
 if ($_SERVER["SERVER_PORT"] != "80") {
  $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
 } else {
  $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
 }
 return $pageURL;
} 

طریقه استفاده از کد بالا :

    
echo curPageURL(); 

[djmohammad]

کوتاه کردن متن های طولانی

function truncate($text, $length = 0)
{
        if ($length > 0 && strlen($text) > $length) // Truncate the item text if it is too long.
        {
                $tmp = substr($text, 0, $length); // Find the first space within the allowed length.
                $tmp = substr($tmp, 0, strrpos($tmp, ' '));
                if (strlen($tmp) >= $length - 3) { // If we don't have 3 characters of room, go to the second space within the limit.
                        $tmp = substr($tmp, 0, strrpos($tmp, ' '));
                }
                $text = $tmp.'...';
        }
        return $text;
} 

طریقه استفاده :

$string = 'The behavior will not truncate an individual word, it will find the first space that is within the limit and truncate.';
echo truncate($string,60); 

[djmohammad]

خلاصه کردن یک رشته



مثال :
“Really long title” to “Really…title”.

function abridge($text, $length = 50, $intro = 30)
{
    // Abridge the item text if it is too long.
    if (strlen($text) > $length)
    {
        // Determine the remaining text length.
        $remainder = $length - ($intro + 3);
 
        // Extract the beginning and ending text sections.
        $beg = substr($text, 0, $intro);
        $end = substr($text, strlen($text) - $remainder);
 
        // Build the resulting string.
        $text = $beg . '...' . $end;
    }
return $text;
} 

طریقه استفاده :

$string = 'The behavior will not truncate an individual word, it will find the first space that is within the limit and truncate.';
echo abridge($string,60); 

[djmohammad]

دریافت اطلاعات از یک آدرس (Get JSON data from a URL (cURL

function get_my_json_data($json_url)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $json_url);
curl_close($ch);
return json_decode($json_data);
} 

طریقه استفاده :

$the_data = get_my_json_data('http://graph.facebook.com/btaylor');
echo '<pre>';
print_r($the_data);
echo '</pre>';
echo $the_data->name; 

اگر شما مشکلی در رابطه با روش CURL روبرو هستید، شما می تونید از روش های جایگزین با استفاده از file_get_contents پی اچ پی استفاده کنید.

function get_json_data($json_url)
{
 $json_data = file_get_contents($json_url);
 return json_decode($json_data);
} 

[djmohammad]

تغییر اندازه گروهی عکس ها در یک پوشه

<?php
//Maximize script execution time
ini_set('max_execution_time', 0);
 
//Initial settings, Just specify Source and Destination Image folder.
$ImagesDirectory    = '/home/public_html/websites/images/'; //Source Image Directory End with Slash
$DestImagesDirectory    = '/home/public_html/websites/images/new/'; //Destination Image Directory End with Slash
$NewImageWidth      = 500; //New Width of Image
$NewImageHeight     = 500; // New Height of Image
$Quality        = 80; //Image Quality
 
//Open Source Image directory, loop through each Image and resize it.
if($dir = opendir($ImagesDirectory)){
    while(($file = readdir($dir))!== false){
 
        $imagePath = $ImagesDirectory.$file;
        $destPath = $DestImagesDirectory.$file;
        $checkValidImage = @getimagesize($imagePath);
 
        if(file_exists($imagePath) && $checkValidImage) //Continue only if 2 given parameters are true
        {
            //Image looks valid, resize.
            if(resizeImage($imagePath,$destPath,$NewImageWidth  ,$NewImageHeight,$Quality))
            {
                echo $file.' resize Success!';
                /*
                Now Image is resized, may be save information in database?
                */
 
            }else{
                echo $file.' resize Failed!';
            }
        }
    }
    closedir($dir);
}
 
//Function that resizes image.
function resizeImage($SrcImage,$DestImage, $MaxWidth,$MaxHeight,$Quality)
{
    list($iWidth,$iHeight,$type)    = getimagesize($SrcImage);
    $ImageScale             = min($MaxWidth/$iWidth, $MaxHeight/$iHeight);
    $NewWidth               = ceil($ImageScale*$iWidth);
    $NewHeight              = ceil($ImageScale*$iHeight);
    $NewCanves              = imagecreatetruecolor($NewWidth, $NewHeight);
 
    switch(strtolower(image_type_to_mime_type($type)))
    {
        case 'image/jpeg':
        case 'image/png':
        case 'image/gif':
            $NewImage = imagecreatefromjpeg($SrcImage);
            break;
        default:
            return false;
    }
 
    // Resize Image
    if(imagecopyresampled($NewCanves, $NewImage,0, 0, 0, 0, $NewWidth, $NewHeight, $iWidth, $iHeight))
    {
        // copy file
        if(imagejpeg($NewCanves,$DestImage,$Quality))
        {
            imagedestroy($NewCanves);
            return true;
        }
    }
}
 
?>

[djmohammad]

فعال کردن نمایش خطا در php

    
ini_set('display_errors', 1);
error_reporting(E_ALL); 

[djmohammad]

بررسی کد های مخرب و تروجان در وب سایت و ایمیل کردن کردن اطلاعات

// Point to script that scans your site
$ScanResult = file_get_contents("http://www.YOURSITE.com/secret-folder/lookforbadguys.php",0);
if($ScanResult)
{
$to = 'youremail@yoursite.com'; // your email address
$headers  = 'MIME-Version: 1.0' . "rn";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "rn";
 
// Mail result
mail($to, 'Malicious code scan result', $ScanResult, $headers);
} 

[djmohammad]

تشخیص حجم فایل یک لینک
مثلا حجم یک فایل زیپ یک لینک دانلود رو که از سایت دیگه است رو مشخص میکنه

<?php
  $remoteFile = 'http://download.thinkbroadband.com/5MB.zip';
$ch = curl_init($remoteFile);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
$data = curl_exec($ch);
curl_close($ch);
if ($data === false) {
  echo 'cURL failed';
  exit;
}
 
$contentLength = 'unknown';
$status = 'unknown';
if (preg_match('/^HTTP\/1\.[01] (\d\d\d)/', $data, $matches)) {
  $status = (int)$matches[1];
}
if (preg_match('/Content-Length: (\d+)/', $data, $matches)) {
  $contentLength = (float)$matches[1];
  }
   
  
//echo 'HTTP Status: ' . $status . "\n";
//echo 'Content-Length: ' . $contentLength;
 
 
 
 
function format_bytes($contentLength) {
    $units = array(' B', ' KB', ' MB', ' GB', ' TB');
    for ($i = 0; $contentLength >= 1024 && $i < 4; $i++) $contentLength /= 1024;
    return round($contentLength, 2).$units[$i];
}
 
echo format_bytes($contentLength);
 
 
?>

[djmohammad]

حذف اولین کاراکتر از رشته:

echo substr("12345678", 1); // 2345678 

[djmohammad]

محاسبه تعداد فایل در دایرکتوری:

$dir_path = "media/"; $wcount = count(glob("" .$dir_path. "*.jpg"));