image identifier

  Verification Code (CAPTCHA) is an abbreviation for "completely automated public Turing test to tell Computers and humans Apart" (fully automatic distinguishing between computer and human Turing tests) A public fully automated procedure for

Beginner php! Look at this topic, I feel the title demon again! But I think, perhaps my idea may give everybody the study to some ideas! Beginner php!Look at this topic, I feel the title demon again!But I think, perhaps my idea may give everybody

Functions | graphics I try not to say big theories, such as what is PNG and find out for myself. PHP has been bundled with its own GD2 library since version 4.3, and users can download and set it themselves. If you want to see if your PHP version

A PNG picture with a transparent color that shrinks as a JPG results in a transparent color loss. So what can I do to save a transparent color? The following code can solve this problemThe main use of the GD library two methods: The code is as

No Components | verification Code Option Explicit ' Display declaration Class Com_gifcode_class'''''''''''''''''''''''''''''''''''''''''''''' Author:layen support@ssaw.net 84815733 (QQ)' Thanks:laomi, Laomiao, Netrube' 2006-01-02'''''''''''''''''''''

To shrink the picture to the appropriate size, JPG image reduction is easier, PNG picture if with transparent color, by JPG to reduce, will cause transparent color loss. Save transparent color mainly utilize two methods of GD library:

1. Open a picture that already exists The parameter of the function Imagecreatefromjpeg () is the path where the file is located, and the return value is the resource identifier of the picture that the parameter refers to. This function

Option Explicit ' Display declarationClass Com_gifcode_class'''''''''''''''''''''''''''''''''''''''''''''' Author:layen support@ssaw.net 84815733 (QQ)' Thanks:laomi, Laomiao, Netrube' 2006-01-02'''''''''''''''''''''''''''''''''''''''''''''Public