imagecolortransparent

Class SecureCode{private static $instance =null;Private $code = ';Private $fontfile;Private $validate;Private $image;Private $specialadd = ' special string for SecureCode ';Private $codeexpire = 86400;Private $codecookiename = ' secure_code '; /***

The code is as follows:Copy code Class securecode{Private static $ instance = null;Private $ code = '';Private $ fontfile;Private $ validate;Private $ image;Private $ specialadd = 'Special string for securecode ';Private $ codeexpire =

First, create picture resources Imagecreatetruecolor (Width,height);Imagecreatefromgif (picture name);Imagecreatefrompng (picture name);Imagecreatefromjpeg (picture name), draw a variety of image imagegif (picture resources, save path);Imagepng

PHP Generate text Image effectRecently see the GD function of PHP, try to make a basic text image effect of the code:Display text Picture page: demo.php$STR = $_request[' str ']? $_request[' str ']: "No input";$str = "People's Republic of China";$im

Php Chinese character verification code generation program (13 ). The php Chinese character verification code generation program is actually very simple about the php Chinese character verification code generation program. it requires a font to

The first question that I encountered earlier was when I generated a text verification code using PHP, the general tip:Warning:imagettftext (): Could not find/open font in/var/www/html/touming.php on line 11OrThe image "http://localhost/img.php"

Ob_clean ();Header (' content-type:image/png ');If you have a problem and need to find a bug, put the header last/*$str = "1\n2\n3\n";$im = Imagecreate (100,120);$white = Imagecolorallocate ($im, 0xff,0xff,0xff);Imagecolortransparent ($im, $white);

First, create a picture resource Imagecreatetruecolor (Width,height);Imagecreatefromgif (image name);Imagecreatefrompng (image name);Imagecreatefromjpeg (picture name); draw a variety of image imagegif (picture resources, save the path);Imagepng

Note: If you want to use PHP GD processing we need to open the GD library GD Library support for PHP under Windows Find php.ini, open content, find: ; Extension=php_gd2.dll Put the front semicolon ";" Remove, then save, if there is no semicolon,

Php code summary of various processing functions for images. 1. create image resources imagecreatetruecolor (width, height); imagecreatefromgif (image name); imagecreatefrompng (image name); imagecreatefromjpeg (image name); and draw various