PHP 圖片 平均分割

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$filename = ‘D://WWW/1.jpg‘;$p = 5;// Get new sizeslist($width, $height) = getimagesize($filename);$newwidth = $width;$newheight = floor($height / $p);$last = $height % $p;// Load$source = imagecreatefromjpeg($filename);for( $i=0 ; $i< $p; $i++ ){$_p = $newheight*$i;if( ( $i + 1 ) == $p )$newheight += $last;$thumb = ImageCreateTrueColor($newwidth, $newheight);imagecopyresized( $thumb, $source, 0, 0, 0, $_p, $newwidth,  $height, $width, $height);imagejpeg( $thumb , "./t{$i}.jpg" ,100);}

將圖片平均分成幾份。