php image resize function

I used some PHP implementation of the image size adjustment (image resize) function, but are not very perfect, some pictures in the adjustment after the complete deformation, there is no reason for some more lines, and some in the color brightness

This article collects some functions of the image operation in PHP, there is a brief description, the need for friends, you can refer to the next.A set of PHP image function sets, as follows:Gd_info function: Gets the information of the currently

This article provides a detailed analysis of common image function sets in php. For more information, see gd_info function: obtain information about the currently installed GD Library. Getimagesize function: obtains the image

This article provides a detailed analysis of common image function sets in php. For more information, see gd_info function: obtain information about the currently installed GD Library. Getimagesize function: obtains the image

Copy CodeThe code is as follows: Upload file Type list $uptypes =array ( ' Image/jpg ', ' Image/jpeg ', ' Image/png ', ' Image/pjpeg ', ' Image/gif ', ' Image/bmp ', ' Image/x-png ' ); $max _file_size = 200000; Upload file size limit, unit

Gd_info function: Get information about the currently installed GD library getimagesize function: Get the size of the image Image_type_to_extension function: Gets the file suffix of the image type Image_type_to_mime_type function: Determine the MIME

PHP uses the Imagick module to scale, crop, compress pictures including GIF images Zoom crop Copy CodeThe code is as follows:/*** Picture Clipping* Cropping rules:* 1. Height is empty or zero by width scaling height adaptive* 2. Width is empty or

This article mainly introduced the PHP implementation of the custom Image Center clipping function, combined with an example of PHP for image acquisition, calculation, cutting, saving and other related operations skills, the need for friends can

Copy Code code as follows: Upload file Type list $uptypes =array ( ' Image/jpg ', ' Image/jpeg ', ' Image/png ', ' Image/pjpeg ', ' Image/gif ', ' Image/bmp ', ' Image/x-png ' ); $max _file_size = 200000; Upload file size limit, unit

PHP image proportional scaling SimpleImage usage and instance sharing. Example code: set the width and proportional scaling copy :? Phpinclude(simpleimage.php?##imagenewsimpleimage(###image-load(picture.jpg); $ image-resi Usage example: Set width