imagecopyresized

Description

int imagecopyresized ( resource dst_image, resource src_image, int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h )

imagecopyresized() copies a rectangular portion of one image to another image. dst_image is the destination image, src_image is the source image identifier. If the source and destination coordinates and width and heights differ, appropriate stretching or shrinking of the image fragment will be performed. The coordinates refer to the upper left corner. This function can be used to copy regions within the same image (if dst_image is the same as src_image) but if the regions overlap the results will be unpredictable.

Примеры

Пример 1. Resizing an image This example will display the image at half size. <?php // File and new size $filename = 'test.jpg' ; $percent = 0.5 ; // Content type header ( 'Content-type: image/jpeg' ); // Get new sizes list( $width , $height ) = getimagesize ( $filename ); $newwidth = $width * $percent ; $newheight = $height * $percent ; // Load $thumb = imagecreate ( $newwidth , $newheight ); $source = imagecreatefromjpeg ( $filename ); // Resize imagecopyresized ( $thumb , $source , 0 , 0 , 0 , 0 , $newwidth , $newheight , $width , $height ); // Output imagejpeg ( $thumb ); ?> The image will be output at half size, though better quality could be obtained using imagecopyresampled().

Смотрите также

imagecopyresampled()