Question

我使用以下代码将图像上传到文件夹。我的文件夹名称是ADS。请帮我将该图像上传到我的ADS目录。

root - localhost / dc / upload.php （代码在此位置）

应将图像添加到localhost / dc / ADS

位置的文件夹中

if (isset($_POST["submit"])) {
    if (is_array($_FILES)) {
        $file = $_FILES['myImage']['tmp_name']; 
        $source_properties = getimagesize($file);
        $image_type = $source_properties[2]; 

        if ($image_type == IMAGETYPE_JPEG ) {   
            $image_resource_id = imagecreatefromjpeg($file);  
            echo $target_layer = fn_resize($image_resource_id,$source_properties[0],$source_properties[1]);
            echo imagejpeg($target_layer,$_FILES['myImage']['name']);
        } elseif ($image_type == IMAGETYPE_GIF ) {  
            $image_resource_id = imagecreatefromgif($file);
            echo$target_layer = fn_resize($image_resource_id,$source_properties[0],$source_properties[1]);
            echo imagegif($target_layer,$_FILES['myImage']['name'] );
        } elseif ($image_type == IMAGETYPE_PNG ) {
            $image_resource_id = imagecreatefrompng($file); 
            echo$target_layer = fn_resize($image_resource_id,$source_properties[0],$source_properties[1]);
            echo imagepng($target_layer,$_FILES['myImage']['name']);
        }
    }
}

function fn_resize($image_resource_id,$width,$height) 
{
    $target_width =540;
    $target_height =400;
    $target_layer=imagecreatetruecolor($target_width,$target_height);
    imagecopyresampled($target_layer,$image_resource_id,0,0,0,0,$target_width,$target_height, $width,$height);
    return $target_layer;
}

当我使用此代码时，图像显示在Image1中。我需要它像在Image2中没有任何图像更改，我需要在图像上有文字或图像水印，如Image3。

Answer 1

PHP函数imagepng imagegif和imagejpeg都有一个参数来传递文件名。我重构了你的代码以显示它。

<?php

if (isset($_POST["submit"])) {
    if (is_array($_FILES)) {
        $file = $_FILES['myImage']['tmp_name'];
        $source_properties = getimagesize($file);
        $image_type = $source_properties[2];

        if ($image_type == IMAGETYPE_JPEG) {
            $image_resource_id = imagecreatefromjpeg($file);
            echo $target_layer = fn_resize($image_resource_id, $source_properties[0], $source_properties[1]);
            imagejpeg($target_layer, "localhost/dc/ADS/" . $_FILES['myImage']['name']);
        }
        elseif($image_type == IMAGETYPE_GIF) {
            $image_resource_id = imagecreatefromgif($file);
            echo$target_layer = fn_resize($image_resource_id, $source_properties[0], $source_properties[1]);
            imagegif($target_layer, "localhost/dc/ADS/" . $_FILES['myImage']['name']);
        }
        elseif($image_type == IMAGETYPE_PNG) {
            $image_resource_id = imagecreatefrompng($file);
            echo$target_layer = fn_resize($image_resource_id, $source_properties[0], $source_properties[1]);
            imagepng($target_layer, "localhost/dc/ADS/" . $_FILES['myImage']['name']);
        }
    }
}

function fn_resize($image_resource_id, $width, $height) {
    $target_width = 540;
    $target_height = 400;
    $target_layer = imagecreatetruecolor($target_width, $target_height);
    imagecopyresampled($target_layer, $image_resource_id, 0, 0, 0, 0, $target_width, $target_height, $width, $height);
    return $target_layer;
}

如何将图像上传到目录

1 个答案: