Question

如何使用Codeigniter控制器仅验证5张图像上传到服务器。

Answer 1

你应该使用像这样的简单count函数

$count = count($_FILES['file']['size']);
foreach($_FILES as $key=>$value)//loop sample to get all images or files

对于验证图像和计数，您可以尝试此代码

$count=0;
$valid_types = array("image/jpg","image/png");

foreach ($_FILES['image'] as $file) {
    count++;

    if (!in_array($file['type'], $valid_types))
        return 1;
    return 0;
}

Answer 2

你可以限制循环，但要确保你的图像是sequance。例如，

$fileCounts = sizeof($files['name']);

foreach ($files['name'] as $key => $image) {
    $totalImageIndex = ($key+1);
    if($totalImageIndex <= 5 ) {
        // Image code here
    }   else {
        continue; // It will be in loop but skip the image uploading
    }    
}

如何在codeigniter 3中设置上传图像限制

2 个答案: