base64文件解码

$str = str_replace(' ', '+', $str); //替换空字符串为+
$str = str_replace('\n', '',$str); //置空换行符
$str = str_replace('\t', '',$str);
$str = str_replace('\r', '',$str);
$str = stripslashes($str); //过虑转义符
$img = base64_decode($str); //解码
file_put_contents(ROOT_PATH . 'public/uploads/' . $saveName,$img); //保存图片

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转载自www.cnblogs.com/myJuly/p/10077722.html