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? PHP ????? ThinkPHP thinkphp?? ??? ????? ??

thinkphp?? ??? ????? ??

May 29, 2023 am 11:06 AM
thinkphp

1??: ??? ???? ??

config.php ?? ???? ?? ??? ?? ??, ??? ?? ??, ?? ??? ?? ????? ???? ???. ???? ??? ??? ????.

return [
    'upload_path' => './uploads/', //上傳文件路徑
    'img_max_size' => 2 * 1024 * 1024, //最大上傳圖片大小
    'img_allow_types' => 'jpg,png,gif,jpeg', //允許上傳的文件類型
];

2??: ??? ??? ?? ??

ThinkPHP??? ??? ???? ???? ??? ??? ??? ??? ? ????. ?? ??? ??? ????:

use think\facade\Request;
use think\facade\Filesystem;

class ImageUpload
{
    public function upload()
    {
        $img_file = Request::file('img'); //獲取上傳的圖片文件
        $img_path = config('upload_path'); //獲取上傳路徑
        $max_size = config('img_max_size'); //獲取最大文件尺寸
        $allow_types = config('img_allow_types'); //獲取允許上傳的類型

        //判斷上傳文件是否有效、大小是否符合、類型是否正確
        if (!$img_file->isValid()) {
            return ['code' => 1, 'msg' => '上傳圖片無效'];
        }

        if ($img_file->getSize() > $max_size) {
            return ['code' => 2, 'msg' => '上傳圖片大小超過限制'];
        }

        if (!in_array($img_file->extension(), explode(',', $allow_types))) {
            return ['code' => 3, 'msg' => '上傳圖片類型不支持'];
        }

        //上傳文件
        $file_info = $img_file->move($img_path);
        if ($file_info === false) {
            return ['code' => 4, 'msg' => '上傳圖片失敗,請重試'];
        }

        //返回上傳成功信息
        $file_name = $file_info->getSaveName();
        $file_url = Filesystem::getDiskConfig('public', ['url' => '/'])->getVisibility()->url($img_path . $file_name);
        return ['code' => 0, 'msg' => '上傳圖片成功', 'url' => $file_url];
    }
}

3??: ??? ??? ?? ??

???? ?????? ??? ??? ??? ???? ??? ??? ?? ? ????.

public function uploadImage()
{
    $result = (new ImageUpload())->upload();
    echo json_encode($result);
}

????? ??? ???? ???. ??? ??? ??? ????? ???? ajax:

<form id="image-form" action="/uploadImage" method="post" enctype="multipart/form-data">
    <input type="file" id="img-file" name="img" accept="image/*">
    <button type="submit">上傳</button>
</form>

<script>
$(document).on(&#39;submit&#39;, &#39;#image-form&#39;, function (event) {
    event.preventDefault(); 
    var formData = new FormData(document.getElementById(&#39;image-form&#39;));
    $.ajax({
        url: &#39;/uploadImage&#39;,
        type: &#39;post&#39;,
        data: formData,
        contentType: false,
        processData: false,
        dataType: &#39;json&#39;,
        success: function (res) {
            //處理上傳結(jié)果
        },
        error: function (xhr, textStatus, errorThrown) {
            console.log(errorThrown);
        }
    });
});
</script>

? ??? thinkphp?? ??? ????? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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