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PHP 用base64兑现加密解密

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Release： 2016-06-13 13:24:18
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PHP 用base64实现加密解密
php中用base64实现加密解密: base64_encode() 和 base64_decode() 进行加密和解密.


语法: string base64_encode ( string data )

使用 base64 对 data 进行编码。设计此种编码是为了使二进制数据可以通过非纯 8-bit 的传输层传输，例如电子邮件的主体。

Base64-encoded 数据要比原始数据多占用 33% 左右的空间。

语法: string base64_decode ( string encoded_data )
base64_decode() 对 encoded_data 进行解码，返回原始数据，失败则返回 FALSE。返回的数据可能是二进制的。


例子 1. base64_encode() 示例
$str = 'This is an encoded string';
echo base64_encode($str);

?>

此例将显示：
VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==


例子 2. base64_decode() 示例

$str = 'VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==';
echo base64_decode($str);

?>

此例将显示：
This is an encoded string
Related labels：
base decode nbsp string
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