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[英]No results when search term include '(' in codeigniter query
[英]CodeIgniter not allowing equal sign in query search term?
我有一個控制器,它接受編碼的代碼並將其設置為會話變量。 然后,我試圖在數據庫中查找該代碼。
當我打印出查詢字符串時,由於某種原因它被排除在外。
/**
* Pass our signup code for demo purposes
*/
public function c(){
// Did we come here from a Sign-up Pin?
$registerPin = $this->uri->segment(3);
if($registerPin){
$this->session->set_userdata(array(
'registerPin' => $registerPin
));
}
// Redirect to register
redirect(site_url("register"));
}
模型:
/**
* Check to see if a pin is a valid demo pin.
*/
public function check_register_pin($pin){
$s=$this->db
->where(array("p.IsDemoPin" => '1', "p.Denomination" => 20, "p.Pin" => $pin))
->where("PinID NOT IN (select PinID from customer_pins where `PinID` = '$pin')")
->get("pins as p");
// If this pin was valid and not used, return true.
if ($s->num_rows() > 0) {
return true;
} else {
return false;
}
}
配置:
$config['permitted_uri_chars'] = 'a-z 0-9~%.:_=+-';
我試圖查找的示例Pin:
ebe83beb61277ab20882b68444cc93e10391d230758847f85e97428d95b7022aab6cdabff6cac097f2e79ceb2df56e06b227063f627341b97346abdc03106d28sXhvJ2tlUzkAGdGwjuKM6O137GlP5tQ1kvazNFnj/f4=
打印查詢:
SELECT * FROM `pins` as `p` WHERE `p`.`IsDemoPin` = '1' AND `p`.`Denomination` = 20 AND `p`.`Pin` = 'ebe83beb61277ab20882b68444cc93e10391d230758847f85e97428d95b7022aab6cdabff6cac097f2e79ceb2df56e06b227063f627341b97346abdc03106d28sXhvJ2tlUzkAGdGwjuKM6O137GlP5tQ1kvazNFnj' AND `PinID` NOT IN (select PinID from customer_pins where `PinID` = 'ebe83beb61277ab20882b68444cc93e10391d230758847f85e97428d95b7022aab6cdabff6cac097f2e79ceb2df56e06b227063f627341b97346abdc03106d28sXhvJ2tlUzkAGdGwjuKM6O137GlP5tQ1kvazNFnj')
問題是,您用來加密值的類返回一個base64編碼的字符串。 其中包含一個/
並且在url中使用時會中斷您的路由。
Base64 不是網址安全的,因為它包含/
, +
和=
字符。
您可以通過解碼函數返回的內容然后以url安全的方式對其進行編碼來解決此問題,然后可以在url路徑中使用它而不會出現問題:
<?php
/**
* Decode a url-safe base64 string.
*/
function base64_urldecode($str) {
$pad = strlen($str) % 4;
if ($pad) {
$padlen = 4 - $pad;
$str .= str_repeat('=', $padlen);
}
return base64_decode(strtr($str, '-_', '+/'));
}
/**
* Encode a string into url safe base64.
*/
function base64_urlencode($str) {
return str_replace('=', '', strtr(base64_encode($str), '+/', '-_'));
}
$code = base64_decode('ebe83beb61277ab20882b68444cc93e10391d230758847f85e97428d95b7022aab6cdabff6cac097f2e79ceb2df56e06b227063f627341b97346abdc03106d28sXhvJ2tlUzkAGdGwjuKM6O137GlP5tQ1kvazNFnj/f4=');
echo base64_urlencode($code);
將輸出_f4
而不是/f4=
:
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