Base64 File helpers

helpers,js

function toBytes(value){
	var unit = value.substr(-2)
	var size = value.replace(unit, '')
	var result

	switch(unit){
		case 'kb': result = size * 1000; break;
		case 'mb': result = size * 1000000; break;
		case 'gb': result = size * 1000000000; break;
		case 'tb': result = size * 1000000000000; break;
		case 'pb': result = size * 1000000000000000; break;
		default: result = size;
	}

	return result;

}

function smallerThan(data, size){
	$uri = data.substring(5)
	var [$type, $imageData] = data.split(';base64,')
	var [,$extension] = $type.split('/')
	// $filesize = strlen(rtrim($imageData, '=')) * 3 / 4);
	$filesize = ($imageData.replace(/~+$/,'').length * 3 /4)
	return $filesize <= size ? true : false;
}

helpers.php

<?php

function base64ToImage($imageData, $path){
    $data = 'data:image/png;base64,AAAFBfj42Pj4';
    list($type, $imageData) = explode(';', $imageData);
    list(,$extension) = explode('/',$type);
    list(,$imageData)      = explode(',', $imageData);
    $fileName = uniqid().'.'.$extension;
    $imageData = base64_decode($imageData);
    // in_array($extension, ["png","jpeg","gif"]){
    // 	$funct = "imagecreafrom".$extension;
    // 	if ($func($imageData)) {
    // 		# code...
    // 	}
    // }
    file_put_contents($path."/".$fileName, $imageData);
    return $fileName;
}

function isBase64($data = ""){
	@list($type, $source) = explode("base64,", $data);

	if (!$source || !$type) {
		return false;
	}

	if ( base64_encode(base64_decode($source)) === $source){
	   return true;
	} else {
	    return false;
	}
}

function isImage($data){
	$uri = substr($data, 5);
	
	$dimension = @getimagesize($data);
	$width = count($dimension) > 0 ? $dimension[0] : 0;
	$height = count($dimension) > 0 ? $dimension[1] : 0;
	
	list($type, $imageData) = explode(';base64,', $uri);
	list(,$extension) = explode('/',$type);

	$size = (int) (strlen(rtrim($imageData, '=')) * 3 / 4);

	$extension = $extension == "jpg" ? "jpeg" : $extension;

	if(function_exists($create="imagecreatefrom".$extension)){
		if($create($data))
			return true;
		else
			return false;
	}else{
		return false;
	}
}

function smallerThan($data, $size){
	$uri = substr($data, 5);
	list($type, $imageData) = explode(';base64,', $uri);
	list(,$extension) = explode('/',$type);
	$filesize = (int) (strlen(rtrim($imageData, '=')) * 3 / 4);

	return $filesize <= $size ? true : false;
}