将图像从 localStorage 上传到 PHP
Uploading an image from localStorage to PHP
首先,抱歉我的英语不好。
我遇到以下问题:
我确实有以下代码可以在 localStorage 上存储丢弃的图像:
localStorage.setItem("dropped_images", JSON.stringify( array_dropped_images ) );
这将导致如下结果:
localStorage.getItem('dropped_images'):
[
{"id":0,"data":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAACgAAAAWgCAIAAAAdYo2IAAAAGXRFW…nu8vxl30QxDphgBbok9vXa1iT2dWMDBGQHDCyNMfCUO83/A/VzaPVq31uqAAAAAElFTkSuQmCC"},
{"id":1,"data":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAACgAAAAWgCAIAAAAdYo2IAAAAGXRFW…m4r4R9wH1l7K6H+6pa8cB9IzySnR2RydqmlhaTBqfp8hP/HzkuuKqP/f8rAAAAAElFTkSuQmCC"}
]
我只是无法理解如何将它发送到 PHP 并通过 $_FILES 获取它。你能帮助我吗?
谢谢!
-------------------- 已解决------------------------ ---------------------------------------------- ------------------------------
根据最佳答案(@sam-battat),可以解决这个问题,编辑函数的某些部分:
function base64_to_img($base64_string, $output_file) {
$data = explode(',', $base64_string);
/**
* Remove the raw text
*/
$ext = str_replace("data:image/", '', $data[0]);
$ext = str_replace(";base64", '', $ext);
/**
* Create the file with the correct extension
*/
$ifp = fopen($output_file . "." . $ext, "wb");
/**
* Create file based on base64
*/
fwrite($ifp, base64_decode($data[1]));
fclose($ifp);
/**
* return file path
*/
return $output_file;
}
非常感谢!
您可以 post 字符串(base64 字符串)并稍后将其转换为文件:
$img = $_POST['img_data'];
$file = base64_to_img($img, '/path/to/file.png');
function base64_to_img($base64_string, $output_file) {
$ifp = fopen($output_file, "wb");
$data = explode(',', $base64_string);
fwrite($ifp, base64_decode($data[1]));
fclose($ifp);
return $output_file;
}
首先,抱歉我的英语不好。 我遇到以下问题:
我确实有以下代码可以在 localStorage 上存储丢弃的图像:
localStorage.setItem("dropped_images", JSON.stringify( array_dropped_images ) );
这将导致如下结果:
localStorage.getItem('dropped_images'):
[
{"id":0,"data":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAACgAAAAWgCAIAAAAdYo2IAAAAGXRFW…nu8vxl30QxDphgBbok9vXa1iT2dWMDBGQHDCyNMfCUO83/A/VzaPVq31uqAAAAAElFTkSuQmCC"},
{"id":1,"data":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAACgAAAAWgCAIAAAAdYo2IAAAAGXRFW…m4r4R9wH1l7K6H+6pa8cB9IzySnR2RydqmlhaTBqfp8hP/HzkuuKqP/f8rAAAAAElFTkSuQmCC"}
]
我只是无法理解如何将它发送到 PHP 并通过 $_FILES 获取它。你能帮助我吗? 谢谢!
-------------------- 已解决------------------------ ---------------------------------------------- ------------------------------
根据最佳答案(@sam-battat),可以解决这个问题,编辑函数的某些部分:
function base64_to_img($base64_string, $output_file) {
$data = explode(',', $base64_string);
/**
* Remove the raw text
*/
$ext = str_replace("data:image/", '', $data[0]);
$ext = str_replace(";base64", '', $ext);
/**
* Create the file with the correct extension
*/
$ifp = fopen($output_file . "." . $ext, "wb");
/**
* Create file based on base64
*/
fwrite($ifp, base64_decode($data[1]));
fclose($ifp);
/**
* return file path
*/
return $output_file;
}
非常感谢!
您可以 post 字符串(base64 字符串)并稍后将其转换为文件:
$img = $_POST['img_data'];
$file = base64_to_img($img, '/path/to/file.png');
function base64_to_img($base64_string, $output_file) {
$ifp = fopen($output_file, "wb");
$data = explode(',', $base64_string);
fwrite($ifp, base64_decode($data[1]));
fclose($ifp);
return $output_file;
}