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xjamundx/canvas-upload.php

Created February 26, 2011 16:13
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php canvas base64 png decoder
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canvas-upload.php
<?php
// requires php5
define('UPLOAD_DIR', 'images/');
$img = $_POST['img'];
$img = str_replace('data:image/png;base64,', '', $img);
$img = str_replace(' ', '+', $img);
$data = base64_decode($img);
$file = UPLOAD_DIR . uniqid() . '.png';
$success = file_put_contents($file, $data);
print $success ? $file : 'Unable to save the file.';
?>
@Willshaw

Willshaw commented Feb 10, 2014

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Great little snippet, thanks

@niekberenschot

niekberenschot commented Jul 15, 2014

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Thanks!

@dkrasov

dkrasov commented Jul 29, 2015

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I have just a black rectangle (file has been created, it's always 1.5 KB size). What I'm doing wrong?

@arifsh4rk

arifsh4rk commented Aug 31, 2015

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thanks!, you solve my problem

@upardhi

upardhi commented Mar 23, 2016

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Great snippet thanks 👍

@pravin-navle

pravin-navle commented Jun 20, 2018

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@dkrasov make to run the command sudo chmod 777 "your_upload_directory"

@kinereth

kinereth commented Jan 8, 2019

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Great snippet really helpfull to me Thank you

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