Android & PHP &Javascript Tutorials: 2016

Thursday, 13 October 2016

set and check cookie in php

Example set cookie

// 86400 = 1 day
$cookie_name = "user";
$cookie_value = "abhi";
setcookie($cookie_name, $cookie_value, time() + (86400 * 30), "/");
?>
<html>
<body>

<?php
if(!isset($_COOKIE[$cookie_name])) {
    echo "Cookie named '" . $cookie_name . "' is not set!";
} else {
    echo "Cookie '" . $cookie_name . "' is set!<br>";
    echo "Value is: " . $_COOKIE[$cookie_name];
}
?>

Example check cookie

<?php
setcookie("test_cookie", "test", time() + 3600, '/');
?>
<html>
<body>

<?php
if(count($_COOKIE) > 0) {
echo "Cookies are enabled.";
} else {
echo "Cookies are disabled.";
}
?>

get and set session in php

Example set session

<?php

session_start();
?>
<!DOCTYPE html>
<html>
<body>

<?php

$_SESSION["favcolor"] = "green";
echo "Session variables are set.";
?>

Example get session

<?php
session_start();
?>
<!DOCTYPE html>
<html>
<body>

<?php

echo "Favorite color is " . $_SESSION["favcolor"] . ".<br>";

?>

loop through an associative array in php

Example Associative Array

<?php
$age = array("abc"=>"35", "def"=>"37", "ghi"=>"43");

foreach($age as $x => $x_value) {
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br>";
}
?>

loop through an indexed array in php

Indexed Array

<?php
$cars = array("php", "javascript", "jquery");
$arrlength = count($cars);

for($x = 0; $x < $arrlength; $x++) {
echo $cars[$x];
echo "<br>";
}
?>

php form validation example

<!DOCTYPE HTML>
<html>
<head>
<style>
.error {color: #FF0000;}</style>
</head>
<body>

<?php

$nameErr = $emailErr = $genderErr = $websiteErr = "";
$name = $email = $gender = $comment = $website = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {
  if (empty($_POST["name"])) {
   $nameErr = "Name is required";
  } else {
   $name = test_input($_POST["name"]);

   if (!preg_match("/^[a-zA-Z ]*$/",$name)) {
   $nameErr = "Only letters and white space allowed";
   }
  }

  if (empty($_POST["email"])) {
   $emailErr = "Email is required";
  } else {
   $email = test_input($_POST["email"]);

   if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
   $emailErr = "Invalid email format";
   }
  }

  if (empty($_POST["website"])) {
   $website = "";
  } else {
   $website = test_input($_POST["website"]);

   if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$website)) {
   $websiteErr = "Invalid URL";
   }
  }

  if (empty($_POST["comment"])) {
   $comment = "";
  } else {
   $comment = test_input($_POST["comment"]);
  }

  if (empty($_POST["gender"])) {
   $genderErr = "Gender is required";
  } else {
   $gender = test_input($_POST["gender"]);
  }
}

function test_input($data) {
  $data = trim($data);
  $data = stripslashes($data);
  $data = htmlspecialchars($data);
  return $data;
}
?>

<h2>PHP Form Validation Example</h2>
<p><span class="error">* required field.</span></p>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
  Name: <input type="text" name="name" value="<?php echo $name;?>">
  <span class="error">* <?php echo $nameErr;?></span>
  <br><br>
  E-mail: <input type="text" name="email" value="<?php echo $email;?>">
  <span class="error">* <?php echo $emailErr;?></span>
  <br><br>
  Website: <input type="text" name="website" value="<?php echo $website;?>">
  <span class="error"><?php echo $websiteErr;?></span>
  <br><br>
  Comment: <textarea name="comment" rows="5" cols="40"><?php echo $comment;?></textarea>
  <br><br>
  Gender:
  <input type="radio" name="gender" <?php if (isset($gender) && $gender=="female") echo "checked";?> value="female">Female
  <input type="radio" name="gender" <?php if (isset($gender) && $gender=="male") echo "checked";?> value="male">Male
  <span class="error">* <?php echo $genderErr;?></span>
  <br><br>
  <input type="submit" name="submit" value="Submit">
</form>

<?php
echo "<h2>Your Input:</h2>";
echo $name;
echo "<br>";
echo $email;
echo "<br>";
echo $website;
echo "<br>";
echo $comment;
echo "<br>";
echo $gender;
?>

</body>
</html>

update query in php

The following examples update the record with id=5 in the "user" table

Example (MySQLi Object-oriented)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$sql = "UPDATE userSET lastname='Doe' WHERE id=5";

if ($conn->query($sql) === TRUE) {
    echo "Record updated successfully";
} else {
    echo "Error updating record: " . $conn->error;
}

$conn->close();
?>

Example (MySQLi Procedural)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = mysqli_connect($servername, $username, $password, $dbname);

if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}

$sql = "UPDATE MyGuests SET lastname='Doe' WHERE id=5";

if (mysqli_query($conn, $sql)) {
echo "Record updated successfully";
} else {
echo "Error updating record: " . mysqli_error($conn);
}

mysqli_close($conn);
?>

Example (PDO)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDBPDO";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);

    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $sql = "UPDATE MyGuests SET lastname='Doe' WHERE id=5";


    $stmt = $conn->prepare($sql);


    $stmt->execute();


    echo $stmt->rowCount() . " records UPDATED successfully";
    }
catch(PDOException $e)
    {
    echo $sql . "<br>" . $e->getMessage();
    }

$conn = null;
?>

delete query in php

The following examples delete the record with id=5 in the "user" table

Example (MySQLi Object-oriented)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$sql = "DELETE FROM user WHERE id=5";

if ($conn->query($sql) === TRUE) {
    echo "Record deleted successfully";
} else {
    echo "Error deleting record: " . $conn->error;
}

$conn->close();
?>

Example (MySQLi Procedural)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = mysqli_connect($servername, $username, $password, $dbname);
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}

$sql = "DELETE FROM user WHERE id=5";

if (mysqli_query($conn, $sql)) {
echo "Record deleted successfully";
} else {
echo "Error deleting record: " . mysqli_error($conn);
}

mysqli_close($conn);
?>

Example (PDO)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

   $sql = "DELETE FROM user WHERE id=5";

   $conn->exec($sql);
    echo "Record deleted successfully";
    }
catch(PDOException $e)
    {
    echo $sql . "<br>" . $e->getMessage();
    }

$conn = null;
?>

select query in php

The following examples add a new record to the "user" table:

Example (MySQLi Object-oriented)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection$conn = new mysqli($servername, $username, $password, $dbname);
// Check connectionif ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$sql = "SELECT id, firstname, lastname FROM user";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // output data of each row    while($row = $result->fetch_assoc()) {
        echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>";
    }
} else {
    echo "0 results";
}
$conn->close();
?>

Example (MySQLi Procedural)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection $conn = mysqli_connect($servername, $username, $password, $dbname);
// Check connection if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
}

$sql = "SELECT id, firstname, lastname FROM user";
$result = mysqli_query($conn, $sql);

if (mysqli_num_rows($result) > 0) {
    // output data of each row    while($row = mysqli_fetch_assoc($result)) {
        echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>";
    }
} else {
    echo "0 results";
}

mysqli_close($conn);
?>

Example (MySQLi Object-oriented)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection$conn = new mysqli($servername, $username, $password, $dbname);
// Check connectionif ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$sql = "SELECT id, firstname, lastname FROM user";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    echo "<table><tr><th>ID</th><th>Name</th></tr>";
    // output data of each row    while($row = $result->fetch_assoc()) {
        echo "<tr><td>".$row["id"]."</td><td>".$row["firstname"]." ".$row["lastname"]."</td></tr>";
    }
    echo "</table>";
} else {
    echo "0 results";
}
$conn->close();
?>

last insert record id

Example (MySQLi Object-oriented)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$sql = "INSERT INTO user(firstname, lastname, email)
VALUES ('abhi', 'aghera', 'example@example.com')";

if ($conn->query($sql) === TRUE) {
    $last_id = $conn->insert_id;
    echo "New record created successfully. Last inserted ID is: " . $last_id;
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

$conn->close();
?>

Example (MySQLi Procedural)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection $conn = mysqli_connect($servername, $username, $password, $dbname);
// Check connection if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
}

$sql = "INSERT INTO user(firstname, lastname, email)
VALUES ('abhi', 'aghera', 'example@example.com')";

if (mysqli_query($conn, $sql)) {
    $last_id = mysqli_insert_id($conn);
    echo "New record created successfully. Last inserted ID is: " . $last_id;
} else {
echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}

mysqli_close($conn);
?>

Example (PDO)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDBPDO";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    // set the PDO error mode to exception    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $sql = "INSERT INTO user(firstname, lastname, email)
    VALUES ('abhi', 'aghera', 'example@example.com')";
    // use exec() because no results are returned    $conn->exec($sql);
    $last_id = $conn->lastInsertId();
    echo "New record created successfully. Last inserted ID is: " . $last_id;
    }
catch(PDOException $e)
    {
    echo $sql . "<br>" . $e->getMessage();
    }

$conn = null;
?>

insert query in php

The following examples add a new record to the "user" table:

Example (MySQLi Object-oriented)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$sql = "INSERT INTO user (firstname, lastname, email)
VALUES ('abhi', 'aghera', 'example@example.com')";

if ($conn->query($sql) === TRUE) {
    echo "New record created successfully";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

$conn->close();
?>

Example (MySQLi Procedural)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = mysqli_connect($servername, $username, $password, $dbname);

if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}

$sql = "INSERT INTO user(firstname, lastname, email)
VALUES ('abhi', 'aghera', 'example@example.com')";

if (mysqli_query($conn, $sql)) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}

mysqli_close($conn);
?>

Example (PDO)

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDBPDO";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);

    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $sql = "INSERT INTO user(firstname, lastname, email)
    VALUES ('abhi', 'aghera', 'example@example.com')";

    $conn->exec($sql);
    echo "New record created successfully";
    }
catch(PDOException $e)
    {
    echo $sql . "<br>" . $e->getMessage();
    }

$conn = null;
?>

database connect in php

Example (MySQLi Object-Oriented)

<?php
$servername = "localhost";
$username = "username";
$password = "password";

$conn = new mysqli($servername, $username, $password);

if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
?>

Example (MySQLi Procedural)

<?php
$servername = "localhost";
$username = "username";
$password = "password";

$conn = mysqli_connect($servername, $username, $password);

if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
echo "Connected successfully";
?>

Example (PDO)

<?php
$servername = "localhost";
$username = "username";
$password = "password";

try {
    $conn = new PDO("mysql:host=$servername;dbname=myDB", $username, $password);

    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully";
    }
catch(PDOException $e)
    {
    echo "Connection failed: " . $e->getMessage();
    }
?>

Tuesday, 6 September 2016

how to get facebook profile in andriod

public class FacebookInfo extends Activity {
...
String get_id, get_name, get_gender, get_email, get_birthday, get_locale, get_location;

private Session.StatusCallback fbStatusCallback = new Session.StatusCallback() {
    public void call(Session session, SessionState state, Exception exception) {
        if (state.isOpened()) {
            Request.executeMeRequestAsync(session, new Request.GraphUserCallback() {
                public void onCompleted(GraphUser user, Response response) {
                    if (response != null) {
                        // do something with <response> now
                        try{
                            get_id = user.getId();
                            get_name = user.getName();
                            get_gender = (String) user.getProperty("gender");
                            get_email = (String) user.getProperty("email");
                            get_birthday = user.getBirthday();
                            get_locale = (String) user.getProperty("locale");
                            get_location = user.getLocation().toString();

                        Log.d(LOG_TAG, user.getId() + "; " +
                            user.getName() + "; " +
                            (String) user.getProperty("gender") + "; " +
                            (String) user.getProperty("email") + "; " +
                            user.getBirthday()+ "; " +
                            (String) user.getProperty("locale") + "; " +
                            user.getLocation());
                        } catch(Exception e) {
                             e.printStackTrace();
                             Log.d(LOG_TAG, "Exception e");
                         }

                    }
                }
            });
        }
    }
};
...
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.fbinfo);
    try {
        openActiveSession(this, true, fbStatusCallback, Arrays.asList(
                new String[] { "email", "user_location", "user_birthday",
"user_likes", "publish_actions" }), savedInstanceState);
    }
    catch (Exception e) {
        e.printStackTrace();
    }
private Session openActiveSession(Activity activity, boolean allowLoginUI,
StatusCallback callback, List<String> permissions, Bundle savedInstanceState) {
    OpenRequest openRequest = new OpenRequest(activity).
setPermissions(permissions).setLoginBehavior(SessionLoginBehavior.
SSO_WITH_FALLBACK).setCallback(callback).
setDefaultAudience(SessionDefaultAudience.FRIENDS);

    Session session = Session.getActiveSession();
    Log.d(LOG_TAG, "" + session);
    if (session == null) {
        Log.d(LOG_TAG, "" + savedInstanceState);
        if (savedInstanceState != null) {
            session = Session.restoreSession(this, null, fbStatusCallback, savedInstanceState);
        }
        if (session == null) {
            session = new Session(this);
        }
        Session.setActiveSession(session);
        if (session.getState().equals(SessionState.CREATED_TOKEN_LOADED) || allowLoginUI) {
            session.openForRead(openRequest);
            return session;
        }
    }
    return null;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
}
}