利用imagemagick來作縮圖

Posted 2021-05-16 royal_coffee

此方式是經由站長建議來實作的喔..
那天與站長閒聊GD與系統縮圖程式的優缺點.
經小弟省思許多還是贊同站長的建議...
利用imagemagick與php來作搭配..
果然...方便渡給100分喔..
小弟提供一個簡單的語法範例功大家一起研究..
有錯誤請多指正唷..^_^

 

<? php 
$w = " 240 " ;  // 自行設定的縮圖寬度
$h = " 320 " ;  // 自行設定的縮圖高度
if ( $_FILES [ ' file ' ][ ' type ' ] == " image/pjpeg "   ||   $_FILES [ ' file ' ][ ' type ' ] == " image/gif "   ||   $_FILES [ ' file ' ][ ' type ' ] == " image/png " ) {
if ( $_FILES [ ' file ' ][ ' type ' ] == " image/pjpeg " ) {
$filename = substr ( rand ( 0 , 999999999999 ) , 1 , 7 ) . " .gif " ;  // 隨機取檔名..我的習慣啦 ^^||
}
if ( $_FILES [ ' file ' ][ ' type ' ] == " image/gif " ) {
$filename = substr ( rand ( 0 , 999999999999 ) , 1 , 7 ) . " .gif " ;
}
if ( $_FILES [ ' file ' ][ ' type ' ] == " image/png " ) {
$filename = substr ( rand ( 0 , 999999999999 ) , 1 , 7 ) . " .png " ;
}
$size = $w . " x " . $h ;
copy ( $_FILES [ ' file ' ][ ' tmp_name ' ] , " /home/caisse/case/kf/data/file/b " . $filename );  // 將暫存檔copy至自己定義的目錄..因為小弟大小圖都想要 ^^
$big_image = " /home/caisse/case/kf/data/file/b " . $filename ;
$small_image = " /home/caisse/case/kf/data/file/s " . $filename ;
$exec_str = " /usr/bin/convert '-geometry'  " . $size . "   " . $big_image . "   " . $small_image ;  // 注意"跟'唷
exec ( $exec_str );
}  else  {
echo   " 請上傳圖片 " ;
}
?>
< form action = " # "  method = " post "  enctype = " multipart/form-data "  name = " form1 " >
< input type = " file "  name = " file " >
< input type = " submit "  name = " Submit "  value = " 送出 " >
</ form >
<? php  if ( $_FILES ) {  ?>
原始圖  < img src = " /data/file/b<?php echo $filename; ?> " >   < br >
裁切後的圖  < img src = " /data/file/s<?php echo $filename; ?> " >  
<? php }  ?>