廢話不多說了,直接給大家貼php等比壓縮圖片大小的相關代碼了,具體代碼如下所示:
<?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); } }
以上代碼內容是小編給大家介紹的基於PHP實現等比壓縮圖片大小的相關內容,代碼簡單易懂,哪裡寫的不好,歡迎各位大俠多多提出寶貴意見,小編非常樂意。