转换为base64后如何将画布图像插入数据库

Question

Javascript

document.getElementById("input1").value=canvas.toDataURL('image/png');

codetreatment.php

 $data = $_POST["input1"];
    $data = str_replace('data:image/png;base64,', '', $data);
    $data = str_replace(' ','+',$data);

    $data = base64_decode($data);

php:

    <form action="codetreatment.php" method="post">
 <input type="text" name="input1" id="input1" >
     <button  type="submit" name="treatmenthistoryupdatebtn" class="btn btn-primary">Save</button>
</form>

但是这个数据库代码不起作用。

将画布图像转换为base64字符串后的下一步是什么？我要保存到数据库中

Answer 1

数据库

$data = $_POST["input1"];       
$data = explode(",", $data)[1];
$decoded_image = base64_decode($data);
$temp_name = 'http://your-domain.com/folder/'.md5(time().rand().time()).".png";
file_put_contents($temp_name, $decoded_image);
// Store this $file to table.
$file = basename($temp_name);