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php - 图像调整大小和上传

转载 作者:搜寻专家 更新时间:2023-10-31 22:00:18 24 4
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我正在尝试使用 import.csv 文件上传一些图像。图片需要在上传前调整大小。我正在使用此代码进行上传,但它返回给定大小的黑色图像。

 <?php
error_reporting(E_ALL);
include('config.php');
include('inc/header.php');
define('CSV_PATH', '');
$csv_file = CSV_PATH . "importImage.csv"; // Name of your CSV file
$csvfile = fopen($csv_file, 'r');
$theData = fgets($csvfile);

$i = 0;
while (!feof($csvfile)) {

$csv_data[] = fgets($csvfile, 1024);

$csv_array = explode(",", $csv_data[$i]);
$insert_csv = array();
$url = $insert_csv['url'] = $csv_array[0];
$image = $insert_csv['image'] = $csv_array[1];

$raw = file_get_contents($url . $image);


/*RESIZE USING GD*/


/*
* PHP GD
* resize an image using GD library
*/

// File and new size
//the original image has 800x600
$filename = $raw;
//the resize will be a percent of the original size
$percent = 0.5;

// Content type
header('Content-Type: image/jpeg');


// Get new sizes
list($width, $height) = getimagesize($filename);
$newwidth = 200;
$newheight = 200;

// Load
$thumb = imagecreate($newwidth, $newheight);
$source = imagecreate($filename);

// Resize
$imgnew = imagecopyresampled($thumb, $source, 0, 0, 0, 0, newwidth, $newheight, $width, $height);

imagejpeg($thumb, 'Mypath' . time() . '.jpg'); // save resized image to

//Output and free memory
imagedestroy($thumb);
$i++;
}

fclose($csvfile);

echo "File data successfully imported to database!!";
mysql_close($connect);

?>

最佳答案

以下脚本将允许您使用 PHP 和 GD 库轻松调整图像大小。

https://github.com/nomisoft/White-Hat-Classes/tree/master/Simple-Image

关于php - 图像调整大小和上传,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30188006/

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