将指定文件夹下所有图片转换成base64并返回数组

public function convertImgToBase64($imgFolderPath, $appID, $customerID)
{
$imageFolder = $imgFolderPath.$appID.'/'.$customerID.'/';

$base64EncodedArray = array();

if(is_dir($imageFolder))
{
Yii::trace($imageFolder);
$handler = opendir($imageFolder);
while (($filename = readdir($handler)) !== false) {
if ($filename != "." && $filename != "..") {
$imageFilePath = $imageFolder.$filename;
$imageInfo = getimagesize($imageFilePath);
$base64ImageContent = "data:{$imageInfo['mime']};base64," . chunk_split(base64_encode(file_get_contents($imageFilePath)));
array_push($base64EncodedArray, $base64ImageContent);
}
}
closedir($handler);
}

return $base64EncodedArray;
}