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用GD库生成高质量的缩略图片_PHP

时间:2021-07-01 10:21:17 帮助过:7人阅读

PHP代码:
https://www.gxlcms.com/


https://www.gxlcms.com/


$FILENAME
https://www.gxlcms.com/=https://www.gxlcms.com/"image_name"https://www.gxlcms.com/;



https://www.gxlcms.com/// 生成图片的宽度

https://www.gxlcms.com/$RESIZEWIDTHhttps://www.gxlcms.com/=https://www.gxlcms.com/400https://www.gxlcms.com/;



https://www.gxlcms.com/// 生成图片的高度

https://www.gxlcms.com/$RESIZEHEIGHThttps://www.gxlcms.com/=https://www.gxlcms.com/400https://www.gxlcms.com/;





function
https://www.gxlcms.com/ResizeImagehttps://www.gxlcms.com/(https://www.gxlcms.com/$imhttps://www.gxlcms.com/,https://www.gxlcms.com/$maxwidthhttps://www.gxlcms.com/,https://www.gxlcms.com/$maxheighthttps://www.gxlcms.com/,https://www.gxlcms.com/$namehttps://www.gxlcms.com/){

https://www.gxlcms.com/$width https://www.gxlcms.com/= https://www.gxlcms.com/imagesxhttps://www.gxlcms.com/(https://www.gxlcms.com/$imhttps://www.gxlcms.com/);

https://www.gxlcms.com/$height https://www.gxlcms.com/= https://www.gxlcms.com/imagesyhttps://www.gxlcms.com/(https://www.gxlcms.com/$imhttps://www.gxlcms.com/);

if((
https://www.gxlcms.com/$maxwidth https://www.gxlcms.com/&& https://www.gxlcms.com/$width https://www.gxlcms.com/> https://www.gxlcms.com/$maxwidthhttps://www.gxlcms.com/) || (https://www.gxlcms.com/$maxheight https://www.gxlcms.com/&& https://www.gxlcms.com/$height https://www.gxlcms.com/> https://www.gxlcms.com/$maxheighthttps://www.gxlcms.com/)){

if(
https://www.gxlcms.com/$maxwidth https://www.gxlcms.com/&& https://www.gxlcms.com/$width https://www.gxlcms.com/> https://www.gxlcms.com/$maxwidthhttps://www.gxlcms.com/){

https://www.gxlcms.com/$widthratio https://www.gxlcms.com/= https://www.gxlcms.com/$maxwidthhttps://www.gxlcms.com//https://www.gxlcms.com/$widthhttps://www.gxlcms.com/;

https://www.gxlcms.com/$RESIZEWIDTHhttps://www.gxlcms.com/=https://www.gxlcms.com/truehttps://www.gxlcms.com/;

}

if(
https://www.gxlcms.com/$maxheight https://www.gxlcms.com/&& https://www.gxlcms.com/$height https://www.gxlcms.com/> https://www.gxlcms.com/$maxheighthttps://www.gxlcms.com/){

https://www.gxlcms.com/$heightratio https://www.gxlcms.com/= https://www.gxlcms.com/$maxheighthttps://www.gxlcms.com//https://www.gxlcms.com/$heighthttps://www.gxlcms.com/;

https://www.gxlcms.com/$RESIZEHEIGHThttps://www.gxlcms.com/=https://www.gxlcms.com/truehttps://www.gxlcms.com/;

}

if(
https://www.gxlcms.com/$RESIZEWIDTH https://www.gxlcms.com/&& https://www.gxlcms.com/$RESIZEHEIGHThttps://www.gxlcms.com/){

if(
https://www.gxlcms.com/$widthratio https://www.gxlcms.com/< https://www.gxlcms.com/$heightratiohttps://www.gxlcms.com/){

https://www.gxlcms.com/$ratio https://www.gxlcms.com/= https://www.gxlcms.com/$widthratiohttps://www.gxlcms.com/;

}else{

https://www.gxlcms.com/$ratio https://www.gxlcms.com/= https://www.gxlcms.com/$heightratiohttps://www.gxlcms.com/;

}

}elseif(
https://www.gxlcms.com/$RESIZEWIDTHhttps://www.gxlcms.com/){

https://www.gxlcms.com/$ratio https://www.gxlcms.com/= https://www.gxlcms.com/$widthratiohttps://www.gxlcms.com/;

}elseif(
https://www.gxlcms.com/$RESIZEHEIGHThttps://www.gxlcms.com/){

https://www.gxlcms.com/$ratio https://www.gxlcms.com/= https://www.gxlcms.com/$heightratiohttps://www.gxlcms.com/;

}

https://www.gxlcms.com/$newwidth https://www.gxlcms.com/= https://www.gxlcms.com/$width https://www.gxlcms.com/* https://www.gxlcms.com/$ratiohttps://www.gxlcms.com/;

https://www.gxlcms.com/$newheight https://www.gxlcms.com/= https://www.gxlcms.com/$height https://www.gxlcms.com/* https://www.gxlcms.com/$ratiohttps://www.gxlcms.com/;

if(
https://www.gxlcms.com/function_existshttps://www.gxlcms.com/(https://www.gxlcms.com/"imagecopyresampled"https://www.gxlcms.com/)){

https://www.gxlcms.com/$newim https://www.gxlcms.com/= https://www.gxlcms.com/imagecreatetruecolorhttps://www.gxlcms.com/(https://www.gxlcms.com/$newwidthhttps://www.gxlcms.com/, https://www.gxlcms.com/$newheighthttps://www.gxlcms.com/);

https://www.gxlcms.com/imagecopyresampledhttps://www.gxlcms.com/(https://www.gxlcms.com/$newimhttps://www.gxlcms.com/, https://www.gxlcms.com/$imhttps://www.gxlcms.com/, https://www.gxlcms.com/0https://www.gxlcms.com/, https://www.gxlcms.com/0https://www.gxlcms.com/, https://www.gxlcms.com/0https://www.gxlcms.com/, https://www.gxlcms.com/0https://www.gxlcms.com/, https://www.gxlcms.com/$newwidthhttps://www.gxlcms.com/, https://www.gxlcms.com/$newheighthttps://www.gxlcms.com/, https://www.gxlcms.com/$widthhttps://www.gxlcms.com/, https://www.gxlcms.com/$heighthttps://www.gxlcms.com/);

}else{

https://www.gxlcms.com/$newim https://www.gxlcms.com/= https://www.gxlcms.com/imagecreatehttps://www.gxlcms.com/(https://www.gxlcms.com/$newwidthhttps://www.gxlcms.com/, https://www.gxlcms.com/$newheighthttps://www.gxlcms.com/);

https://www.gxlcms.com/imagecopyresizedhttps://www.gxlcms.com/(https://www.gxlcms.com/$newimhttps://www.gxlcms.com/, https://www.gxlcms.com/$imhttps://www.gxlcms.com/, https://www.gxlcms.com/0https://www.gxlcms.com/, https://www.gxlcms.com/0https://www.gxlcms.com/, https://www.gxlcms.com/0https://www.gxlcms.com/, https://www.gxlcms.com/0https://www.gxlcms.com/, https://www.gxlcms.com/$newwidthhttps://www.gxlcms.com/, https://www.gxlcms.com/$newheighthttps://www.gxlcms.com/, https://www.gxlcms.com/$widthhttps://www.gxlcms.com/, https://www.gxlcms.com/$heighthttps://www.gxlcms.com/);

}

https://www.gxlcms.com/ImageJpeg https://www.gxlcms.com/(https://www.gxlcms.com/$newimhttps://www.gxlcms.com/,https://www.gxlcms.com/$name https://www.gxlcms.com/. https://www.gxlcms.com/".jpg"https://www.gxlcms.com/);

https://www.gxlcms.com/ImageDestroy https://www.gxlcms.com/(https://www.gxlcms.com/$newimhttps://www.gxlcms.com/);

}else{

https://www.gxlcms.com/ImageJpeg https://www.gxlcms.com/(https://www.gxlcms.com/$imhttps://www.gxlcms.com/,https://www.gxlcms.com/$name https://www.gxlcms.com/. https://www.gxlcms.com/".jpg"https://www.gxlcms.com/);

}

}







if(
https://www.gxlcms.com/$_FILEShttps://www.gxlcms.com/[https://www.gxlcms.com/'image'https://www.gxlcms.com/][https://www.gxlcms.com/'size'https://www.gxlcms.com/]){

if(
https://www.gxlcms.com/$_FILEShttps://www.gxlcms.com/[https://www.gxlcms.com/'image'https://www.gxlcms.com/][https://www.gxlcms.com/'type'https://www.gxlcms.com/] == https://www.gxlcms.com/"image/pjpeg"https://www.gxlcms.com/){

https://www.gxlcms.com/$im https://www.gxlcms.com/= https://www.gxlcms.com/imagecreatefromjpeghttps://www.gxlcms.com/(https://www.gxlcms.com/$_FILEShttps://www.gxlcms.com/[https://www.gxlcms.com/'image'https://www.gxlcms.com/][https://www.gxlcms.com/'tmp_name'https://www.gxlcms.com/]);

}elseif(
https://www.gxlcms.com/$_FILEShttps://www.gxlcms.com/[https://www.gxlcms.com/'image'https://www.gxlcms.com/][https://www.gxlcms.com/'type'https://www.gxlcms.com/] == https://www.gxlcms.com/"image/x-png"https://www.gxlcms.com/){

https://www.gxlcms.com/$im https://www.gxlcms.com/= https://www.gxlcms.com/imagecreatefrompnghttps://www.gxlcms.com/(https://www.gxlcms.com/$_FILEShttps://www.gxlcms.com/[https://www.gxlcms.com/'image'https://www.gxlcms.com/][https://www.gxlcms.com/'tmp_name'https://www.gxlcms.com/]);

}elseif(
https://www.gxlcms.com/$_FILEShttps://www.gxlcms.com/[https://www.gxlcms.com/'image'https://www.gxlcms.com/][https://www.gxlcms.com/'type'https://www.gxlcms.com/] == https://www.gxlcms.com/"image/gif"https://www.gxlcms.com/){

https://www.gxlcms.com/$im https://www.gxlcms.com/= https://www.gxlcms.com/imagecreatefromgifhttps://www.gxlcms.com/(https://www.gxlcms.com/$_FILEShttps://www.gxlcms.com/[https://www.gxlcms.com/'image'https://www.gxlcms.com/][https://www.gxlcms.com/'tmp_name'https://www.gxlcms.com/]);

}

if(
https://www.gxlcms.com/$imhttps://www.gxlcms.com/){

if(
https://www.gxlcms.com/file_existshttps://www.gxlcms.com/(https://www.gxlcms.com/"$FILENAME.jpg"https://www.gxlcms.com/)){

https://www.gxlcms.com/unlinkhttps://www.gxlcms.com/(https://www.gxlcms.com/"$FILENAME.jpg"https://www.gxlcms.com/);

}

https://www.gxlcms.com/ResizeImagehttps://www.gxlcms.com/(https://www.gxlcms.com/$imhttps://www.gxlcms.com/,https://www.gxlcms.com/$RESIZEWIDTHhttps://www.gxlcms.com/,https://www.gxlcms.com/$RESIZEHEIGHThttps://www.gxlcms.com/,https://www.gxlcms.com/$FILENAMEhttps://www.gxlcms.com/);

https://www.gxlcms.com/ImageDestroy https://www.gxlcms.com/(https://www.gxlcms.com/$imhttps://www.gxlcms.com/);

}

}



https://www.gxlcms.com/?>



https://www.gxlcms.com/echo(https://www.gxlcms.com/$FILENAMEhttps://www.gxlcms.com/.https://www.gxlcms.com/".jpg?reload="https://www.gxlcms.com/.https://www.gxlcms.com/randhttps://www.gxlcms.com/(https://www.gxlcms.com/0https://www.gxlcms.com/,https://www.gxlcms.com/999999https://www.gxlcms.com/)); https://www.gxlcms.com/?>">
















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