I am trying to validate my name's text box so even if they by pass it it won't still accept the name with spcial characters like "!##$%^&*()_" and numbers too and this is my code:
public function updateuserAction(){
$this->view->disable();
$get = $this->request;
$key = $get->get('key');
$email = $get->get('email');
$password = $get->get('password');
$realName = $get->get('realName');
$type = $get->get('userType');
if(filter_var($realname, FILTER_VALIDATE_REGEXP, array("options" => array("regexp" => "/^[a-zA-Z]+$/")))){
$url = $this->apiUrl."user/update?q=(key:$key,email:".urlencode($email).",password:".urlencode($password).",realName:".urlencode($realName).",userType:".urlencode($type).")&envelope=false";
$ch = curl_init($url);
curl_setopt_array($ch, $this->curlopt);
echo curl_exec($ch);
}else {
echo "Failed";
}
}
this is my code i don't know how to insert validation here. it always give me an error message whenever i add validation code here. I am a newbie in this line so if could help it would mean alot to e. thanks!
I already added my trial code
The php regular expression matching function is - preg_match.
Your question is a bit vague but from what I can gather you want to validate that the username contains only alphabet characters. As such try something like
if (preg_match("^[a-zA-Z]+$") == false)
{
echo "Username is invalid.";
die(); // or some other error handling code
}
Aww man, now i know what's making my code always fall on failed -- just because of $realname to $realName -- i forgot it's case sensitive. thanks for your efforts to answer guys :D
Related
<?php
$filename = 'whitelist.txt';
if (isset($_POST['uname'])) {
$uname = $_POST['uname'];
file_put_contents($filename, '{"'.$uname.'"}');
if (empty($uname)) {
header("Location: generator.php?error=No Empty Username");
exit();
}
}else{
header("Location: generator.php");
exit();
}
The expected output should be:
{"User1", "User2"}
But it is:
{"User1"}
I just wanna make a whitelist user by using a form so he can get whitelisted, I hope someone can help! Thank you!
To make a user blacklist you'll need to use some database and authentication otherwise you'll end up with problems in a case where like user1 and user2 have the same data
But for your question.
One way is to replace the last character every time here is how...
replace the file_put_con... line with this
$existing = file_get_contents($filename);
if(strpos($existing,"}")){ //check if at least one username exists
$newcontent = str_replace('}',',"'.$uname.'"}',$existing); //replace old data with new
file_put_contents($filename,$newcontent);
} else { // incase there is no username at all
$newcontent = '{"'.$uname.'"}';
file_put_contents($filename,$newcontent);
}
You'll obviously corrupt the data if you enter } in the uname
So prevent that by using entities or prevent the } character from being accepted
I'm trying to integrate an API builder to my control panel through a form or post data. I can't figure out how to put the post data as the value for the array.
I tried using print_r($_POST['VALUE']) with and without quotes.
I tried using just $_POST['VALUE'] with and without quotes.
I also tried to set $value = $_POST['VALUE'] then using $value with and without quotes but that caused an error 500.
Here is the code I am trying to use:
$res = $api->remoteCall('requestLogin', array(
'type' => 'external',
'domain' => 'print_r($_POST['domain'])',
'lang' => 'en',
'username' => 'print_r($_POST['uname'])',
'password' => 'print_r($_POST['pass'])',
'apiUrl' => '127.0.0.1',
'uploadDir' => '/web/'.print_r($_POST['domain']).'/public_html',
I apologize as I am new to PHP, but thank you in advance.
I'm not sure what other logic is being done there, how the post variables are being sent to the script your sample code is running on, or any of the other details which might point towards a more complete solution but here are some basic tips to help you troubleshoot.
The post variables should be formatted like this:
$res = $api->remoteCall('requestLogin', array(
'domain' => $_POST['domain'],
You can dump the entire post array to the screen by doing
print_r($_POST);
This should output your array to the screen so you can verify that you're receiving the post data in the code and should help you fix any typos or misnamed post variables. If the array has the key as $_POST['domainName'] and you're echoing $_POST['domain']
You're calling code (the "form or post data") should have the post fields in place and named correctly in order for them to be sent to the script
<input type="text" name="domain">
You should be performing some basic validation on your post fields before adding them to something that's going to be stored anywhere or sent off to a third-party. At the most minimal you'll want to check that there is a value being set for the essential fields (required fields) and I'd look to make sure the values are matching requirements of the API you're passing them off to.
Several things may go wrong when using api. POST values, input values, API call or connection or maybe api response. So not only at the time of implementation and coding but also when integrating api call script with the application there should be some sort of testing and error handling in place. A simple script can be like this
$error = array();
$request = array();
$request['type'] = 'external';
if (isset($_POST['domain']) && !empty($_POST['domain'])) {
$request['domain'] = $_POST['domain'];
$request['uploadDir'] = "/web/{$_POST['domain']}/public_html";
} else {
$error[] = "Domain is empty";
}
if (isset($_POST['uname']) && !empty($_POST['uname'])) {
$request['username'] = $_POST['uname'];
} else {
$error[] = "Username is empty";
}
if (isset($_POST['pass']) && !empty($_POST['pass'])) {
$request['password'] = $_POST['pass'];
} else {
$error[] = "Username is empty";
}
$request['lang'] = 'en';
$request['apiUrl'] = '127.0.0.1';
if (count($error) > 0) {
echo implode( "<br>" , $error );
} else {
try{
$res = $api->remoteCall('requestLogin',$request);
} catch ( Exception $e ) {
print_r($e);
exit();
}
}
I am trying to have users sign up with a desired email. But I dont want them to have to input the '#domain.com', I just want them to input the username, (everything to the left of '#' ). Also, how would I go about making sure that the only characters to the left are lowercase letters, numbers and an underscore? Basically if they enter a capital letter, it should lower it. I do know about strtolower, but just don't quite know how to implement it in my script. I only want my script to be able to validate one domain, in this example 'domain.com'
My script needs these fields populated
$email = ($_POST['email']);
and this checks if it is valid
if(!filter_var($email, FILTER_VALIDATE_EMAIL)){
echo "You have entered an invalid email. Press back and try again.";
$db = null;
exit();
}
So I know I need to do something with the $email variable. Sorry am a bit new to php
You're doing it wrong, as there is a range of characters to the left of the '#' which are valid in email addresses, but this is what you want:
$stub = strtolower($_POST['email']);
$email = $stub . "#domain.com";
if ((preg_match("/[^a-z0-9_]/", $stub)) ||
(filter_var($email, FILTER_VALIDATE_EMAIL) === false) ) {
echo "Invalid email....";
die;
}
See the following:
strtolower: http://php.net/manual/en/function.strtolower.php
strpos: http://php.net/manual/en/function.strpos.php
$email=strtolower($email);
if(strpos($email,'#')){
//Fail
}
Then just validate with filter_var as you have specified.
$email = strtolower('dsfds_09azZdsf');
if (strlen($email) == strlen(preg_replace('#[^a-z_0-9]#i', '', $email)))
{
echo 'valid';
}
else
{
echo 'not valid';
}
I want to echo/print only a certain piece of input. For example i have this youtube url http://www.youtube.com/watch?v=p963CeTtJVM how would i be able to only echo the last piece of :"p963CeTtJVM" from the input. As far as i know their always 11 symbols.
Code:
if (empty($_POST["website"]))
{$website = "";}
else
{
$website = test_input($_POST["website"]);
// check if URL address syntax is valid (this regular expression also allows dashes in the URL)
if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&##\/%?=~_|!:,.;]*[-a-z0-9+&##\/%=~_|]/i",$website))
{
$websiteErr = "Invalid URL";
}
}
list ($void, $query_string) = split('?', $url); // or list(,$qs)
parse_str($query_string, $data);
var_dump($data);
For this specific string substr($str, -11) will take the last 11 chars, but that doesn't include other tags. Check out parse_str, it will probably save you a headache in the long run.
I hope it can help you.
<?php
$url = 'http://www.youtube.com/watch?v=p963CeTtJVM';
$urlParts = explode('v=', $url);
if (count($urlParts) == 2 && isset($urlParts[1])) {
echo "youtube code : {$urlParts[1]}";
} else {
echo "Invalid Youtube url.";
}
You can use substr method to return part of a string.
You can use the explode function to seperate the video ID and the rest of the link like this:
$array = explode("=", $website);
echo $array[1];
This parses the URL into its component parts, then parses the query string into an associative array.
$url = parse_url($url);
parse_str($url['query'], $params);
$v = $params['v'];
The following code works with all YouTube domains except for youtu.be. An example would be: http://www.youtube.com/watch?v=ZedLgAF9aEg would turn into: ZedLgAF9aEg
My question is how would I be able to make it work with http://youtu.be/ZedLgAF9aEg.
I'm not so great with regex so your help is much appreciated. My code is:
$text = preg_replace("#[&\?].+$#", "", preg_replace("#http://(?:www\.)?youtu\.?be(?:\.com)?/(embed/|watch\?v=|\?v=|v/|e/|.+/|watch.*v=|)#i", "", $text)); }
$text = (htmlentities($text, ENT_QUOTES, 'UTF-8'));
Thanks again!
//$url = 'http://www.youtube.com/watch?v=ZedLgAF9aEg';
$url = 'http://youtu.be/ZedLgAF9aEg';
if (FALSE === strpos($url, 'youtu.be/')) {
parse_str(parse_url($url, PHP_URL_QUERY), $id);
$id = $id['v'];
} else {
$id = basename($url);
}
echo $id; // ZedLgAF9aEg
Will work for both versions of URLs. Do not use regex for this as PHP has built in functions for parsing URLs as I have demonstrated which are faster and more robust against breaking.
Your regex appears to solve the problem as it stands now? I didn't try it in php, but it appears to work fine in my editor.
The first part of the regex http://(?:www\.)?youtu\.?be(?:\.com)?/matches http://youtu.be/ and the second part (embed/|watch\?v=|\?v=|v/|e/|.+/|watch.*v=|) ends with |) which means it matches nothing (making it optional). In other words it would trim away http://youtu.be/ leaving only the id.
A more intuitive way of writing it would be to make the whole if grouping optional I suppose, but as far as I can tell your regex is already solving your problem:
#http://(?:www\.)?youtu\.?be(?:\.com)?/(embed/|watch\?v=|\?v=|v/|e/|.+/|watch.*v=)?#i
Note: Your regex would work with the www.youtu.be.com domain as well. It would be stripped away, but something to watch out for if you use this for validating input.
Update:
If you want to only match urls inside [youtube][/youtube] tags you could use look arounds.
Something along the lines of:
(?<=\[youtube\])(?:http://(?:www\.)?youtu\.?be(?:\.com)?/(?:embed/|watch\?v=|\?v=|v/|e/|[^\[]+/|watch.*v=)?)(?=.+\[/youtube\])
You could further refine it by making the .+ in the look ahead only match valid URL characters etc.
Try this, hope it'll help you
function YouTubeUrl($url)
{
if($url!='')
{
$newUrl='';
$videoLink1=$url;
$findKeyWord='youtu.be';
$toBeReplaced='www.youtube.com';
if(IsContain('watch?v=',$videoLink1))
{
$newUrl=tMakeUrl($videoLink1);
}
else if(IsContain($videoLink1, $findKeyWord))
{
$videoLinkArray=explode('/',$videoLink1);
$Protocol='';
if(IsContain('://',$videoLink1))
{
$protocolArray=explode('://',$videoLink1);
$Protocol=$protocolArray[0];
}
$file=$videoLinkArray[count($videoLinkArray)-1];
$newUrl='www.youtube.com/watch?v='.$file;
if($Protocol!='')
$newUrl.=$Protocol.$newUrl;
else
$newUrl=tMakeUrl($newUrl);
}
else
$newUrl=tMakeUrl($videoLink1);
return $newUrl;
}
return '';
}
function IsContain($string,$findKeyWord)
{
if(strpos($string,$findKeyWord)!==false)
return true;
else
return false;
}
function tMakeUrl($url)
{
$tSeven=substr($url,0,7);
$tEight=substr($url,0,8);
if($tSeven!="http://" && $tEight!="https://")
{
$url="http://".$url;
}
return $url;
}
You can use bellow function for any of youtube URL
I hope this will help you
function checkYoutubeId($id)
{
$youtube = "http://www.youtube.com/oembed?url=". $id ."&format=json";
$curl = curl_init($youtube);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$return = curl_exec($curl);
curl_close($curl);
return json_decode($return, true);
}
This function return Youtube video detail if Id match to youtube video ID
A little improvement to #rvalvik answer would be to include the case of the mobile links (I've noticed it while working with a customer who used an iPad to navigate, copy and paste links). In this case, we have a m (mobile) letter instead of www. Regex then becomes:
#(https?://)?(?:www\.)?(?:m\.)?(?:youtu\.be/|youtube\.com(?:/embed/|/v/|/watch?.*?v=))([\w\-]{10,12}).*#x
Hope it helps.
A slight improvement of another answer:
if (strpos($url, 'feature=youtu.be') === TRUE || strpos($url, 'youtu.be') === FALSE )
{
parse_str(parse_url($url, PHP_URL_QUERY), $id);
$id = $id['v'];
}
else
{
$id = basename($url);
}
This takes into account youtu.be still being in the URL, but not the URL itself (it does happen!) as it could be the referring feature link.
Other answers miss out on the point that some youtube links are part of a playlist and have a list paramater also which is required for embed code. So to extract the embed code from link one could try this JS code:
let urlEmbed = "https://www.youtube.com/watch?v=iGGolqb6gDE&list=PL2q4fbVm1Ik6DCzm9XZJbNwyHtHGclcEh&index=32"
let embedId = urlEmbed.split('v=')[1];
let parameterStringList = embedId.split('&');
if (parameterStringList.length > 1) {
embedId = parameterStringList[0];
let listString = parameterStringList.filter((parameterString) =>
parameterString.includes('list')
);
if (listString.length > 0) {
listString = listString[0].split('=')[1];
embedId = `${parameterStringList[0]}?${listString}`;
}
}
console.log(embedId)
Try it out here: https://jsfiddle.net/AMITKESARI2000/o62dwj7q/
try this :
$string = explode("=","http://www.youtube.com/watch?v=ZedLgAF9aEg");
echo $string[1];
would turn into: ZedLgAF9aEg