php bdecode PHP base64_encode和base64_decode 编码/解码url

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header("content-type:text/html;charset=utf-8");

/**

*编码

*@param string $string

*/

function urlsafe_b64encode($string){

$data = base64_encode($string);

$data = str_replace(array('+','/'),array('-','_',''),$data);

var_dump($data).'

';

return $data;

}

$a = url_safe_b64encode('请你不要再迷恋哥');

var_dump($a);

echo '

';

/**

*base64解码url

*@param string $string

*@return 如果传的值是一个没有编码的字符串，则返回空

*/

function urlsafe_b64decode(string){

$data = str_replace(array('-','_'),array('+','/'),$string);

$mod4 = strlen($data)%4;

if($mod4){

$data.=substr('===',$mod4);

}

return base64_decode($data);

}

$a = urlsafe_b64decode($a);

var_dump($a);

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