Based on PHP implementation of compression picture size, _php tutorial

Based on the PHP implementation, such as compressed image size,

Don't say much nonsense, directly to everyone to paste PHP and other than the size of the compressed image of the relevant code, the specific code is as follows:

<?php$im = Imagecreatefromjpeg (' D:\phpplace\.jpeg '); Resizeimage ($im,,, ' xinde ', '. jpg '); function Resizeimage ($im , $maxwidth, $maxheight, $name, $filetype) {$pic _width = Imagesx ($im); $pic _height = Imagesy ($im); echo " Start-----------------"if ($maxwidth && $pic _width > $maxwidth) && ($maxheight && $pic _ Height > $maxheight) {if ($maxwidth && $pic _width> $maxwidth) {$widthratio = $maxwidth/$pic _width;$ Resizewidth_tag = true;} if ($maxheight && $pic _height> $maxheight) {$heightratio = $maxheight/$pic _height; $resizeheight _tag = true;} if ($resizewidth _tag && $resizeheight _tag) {if ($widthratio < $heightratio) $ratio = $widthratio; else$ratio = $ HeightRatio;} if ($resizewidth _tag &&! $resizeheight _tag) $ratio = $widthratio; if ($resizeheight _tag &&! $resizewidth _tag) $ratio = $heightratio; $newwidth = $pic _width * $ratio; $newheight = $pic _height * $ratio; if (Function_exists (" Imagecopyresampled ") {$newim = Imagecreatetruecolor ($newwidth, $neWheight) imagecopyresampled ($newim, $im,,,,, $newwidth, $newheight, $pic _width, $pic _height);} else{$newim = imagecreate ($newwidth, $newheight); imagecopyresized ($newim, $im,,,,, $newwidth, $newheight, $pic _width, $pic _height);} $name = $name. $filetype; imagejpeg ($newim, $name); Imagedestroy ($newim);}  else{$name = $name. $filetype; imagejpeg ($im, $name);}}

The above code content is small to introduce to you based on the PHP implementation and other than the size of the compressed image of the relevant content, the code is easy to understand, where the bad writing, welcome to all the heroes to put forward valuable comments, small series is very happy.

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