What is session_set_cookie_params

void session_set_cookie_params ( int $lifetime [, string $path [, string $domain [, bool $secure = false [, bool $httponly = false ]]]] )

Set the session cookie parameters

Its parameters defined in the php.ini file. The effect of this function only lasts for the duration of the script. Thus, you need to call session_set_cookie_params() for every request and before session_start() is called.

Following are Parameters

1. lifetime: Lifetime of the session cookie, defined in seconds.
2. path: Path on the domain where the cookie will work. Use a single slash ('/') for all paths on the domain.
3. domain: Cookie domain, for example www.example.com. To make cookies visible on all subdomains then the domain must be prefixed with a dot like '.example.com'.
4. secure If TRUE cookie will only be sent over secure connections.
5. httponly: If set to TRUE then PHP will attempt to send the httponly flag when setting the session cookie.

 
session_set_cookie_params(0,"/webapp/");
session_start();

5.2.0 The httponly parameter was added. 4.0.4 The secure parameter was added.

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imagecreatefrompng - Create a new image from file or URL - PHP

resource imagecreatefrompng ( string $filename )

Create a new image from file or URL

imagecreatefrompng() returns an image identifier representing the image obtained from the given filename


<?php
function LoadPNG($imgname)
{
    /* Attempt to open */
    $im = @imagecreatefrompng($imgname);

    /* See if it failed */
    if(!$im)
    {
        /* Create a blank image */
        $im  = imagecreatetruecolor(150, 30);
        $bgc = imagecolorallocate($im, 255, 255, 255);
        $tc  = imagecolorallocate($im, 0, 0, 0);

        imagefilledrectangle($im, 0, 0, 150, 30, $bgc);

        /* Output an error message */
        imagestring($im, 1, 5, 5, 'Error loading ' . $imgname, $tc);
    }

    return $im;
}header('Content-Type: image/png');$img = LoadPNG('bogus.image');imagepng($img);imagedestroy($img);?>

PHPで画像を縮小してアップロードする

Make sure GD Library is enabled and "PNG Support" is must enabled in GD Library.

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