Marius' Blog » PHP

PHP Email Validation

Marius — Sun, 01 Aug 2010 09:06:51 +0000

Below PHP function returns true if the email address given as parameter is valid, false otherwise.

PHP code:

function validEmail($email)

{

    if (preg_match(‘/^[a-z0-9&\'\.\-_\+]+@[a-z0-9\-]+\.([a-z0-9\-]+\.)*+[a-z]{2}/is’, $email))

        {return true;}

    else

        {return false;}

}

Send an email with php (HTML content supported)

Marius — Mon, 07 Jun 2010 08:45:20 +0000

Here is a php function with which you can send an email with normal text or in html format.

PHP code:

$email_to=‘Where the email will be sended to.’;
$email_from=‘From where the email will be sended.’;
$subject=‘The subject of the email.’;
$message=‘The content of the email; can be in html format to.’;
sendEmail($email_to,$email_from,$subject,$message);

function sendEmail($email_to,$email_from,$subject,$message)

{

    $headers  = ‘MIME-Version: 1.0′ . "\r\n";

    $headers .= ‘Content-type: text/html; charset=iso-8859-1′ . "\r\n";

    $headers .= ‘From:’.$email_from."\r\n"

                     .‘Reply-To:’.$email_from;

    mail($email_to, $subject, $message, $headers);

}

How to parse a XML file using PHP

Marius — Sun, 30 May 2010 05:50:52 +0000

Here is an example on how to get data from XML files using PHP.

XML file example:

 version="1.0" encoding="utf-8"?>

>

    >Logo Test>

    >Title Test>

    >Subtitle Test>

    >

         Name="Item 1" DataPath="DP Test" />

         Name="Item 2" DataPath="DP Test" />

         Name="Item 3">

             Name="SubItem 1" DataPath="DP Test" />

             Name="SubItem 2" DataPath="DP Test" />

             Name="SubItem 3" DataPath="DP Test" />

             Name="SubItem 4" DataPath="DP Test" />

             Name="SubItem 5" DataPath="DP Test" />

        >

         Name="Item 4">

             Name="SubItem 1" DataPath="DP Test" />

             Name="SubItem 2" DataPath="DP Test" />

             Name="SubItem 3" DataPath="DP Test" />

        >

         Name="Item 5" Type="T Test" DataPath="DP Test" />

    >

>

PHP code:

$xmlDoc=new DOMDocument();// Load a XML file.
$xmlDoc->load(‘menu.xml’);

$XMLNode=$xmlDoc->documentElement;
//We go through all nodes from the XML and test their names. Depending on their names we take necessary actions.

foreach ($XMLNode->childNodes as $currentNode)

{

    if (strtolower($currentNode->nodeName) == ‘logo’)

        {echo $currentNode->nodeValue.‘
’;} // Read a node value.

    if (strtolower($currentNode->nodeName) == ‘title’)

        {echo $currentNode->nodeValue.‘
’;}                

    if (strtolower($currentNode->nodeName) == ‘subtitle’)

        {echo $currentNode->nodeValue.‘
’;}                

    if (strtolower($currentNode->nodeName) == ‘menu’)

    { 

        foreach ($currentNode->childNodes as $menuItem)

        {

            // Test if node has children.               

            if (strtolower($menuItem->nodeName) == ‘item’ && $menuItem->hasChildNodes())

            {

                echo $menuItem->getAttribute(‘Name’).‘
’; // Read a node attribute.

                foreach ($menuItem->childNodes as $submenuItem)

                {

                    if (strtolower($submenuItem->nodeName) == ‘item’)

                    {

                        echo $submenuItem->getAttribute(‘Name’);

                        echo $submenuItem->getAttribute(‘DataPath’);

                    }                                   

                }

            }

            elseif (strtolower($menuItem->nodeName) == ‘item’)

            {

                echo $menuItem->getAttribute(‘Name’);

                echo $menuItem->getAttribute(‘DataPath’);

            }   

        }

    }

}

AJAX form request using POST method

Marius — Wed, 05 Aug 2009 08:33:34 +0000

Here is a way you can call a server side script with AJAX, using POST method.

JavaScript code:

var xmlHttpVariable;// Declare a global variable.
// HTTP request object.

function GetXmlHttpObject()

{

    var xmlHttp = null;
    try

        {xmlHttp = new XMLHttpRequest();}

    catch (e)

    {

        try

            {xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");}

        catch (e)

            {xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");}

    }
    return xmlHttp;

}
function callServer()

{

    xmlHttpVariable = new GetXmlHttpObject(); // Call HTTP request object.

    var url = "url"; // Set the URL to the server-side script.

    var variables = "var1=val1&var2=val2"; // Set the variables.

    xmlHttpVariable.onreadystatechange = stateChangedVariable; // Call a function on state change.

    xmlHttpVariable.open("POST",url,true); // Open the URL.

    // Send the proper header information along with the request.

    xmlHttpVariable.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

    xmlHttpVariable.setRequestHeader("Content-length", variables.length);

    xmlHttpVariable.setRequestHeader("Connection", "close");

    xmlHttpVariable.send(variables); // Send the variables.

}
function stateChangedVariable()

{

    if (xmlHttpVariable.readyState == 4) // Values for readyState see below for explanations.

    {

        if (xmlHttpVariable.responseText.replace(/^\s+|\s+$/g, ”) == ‘return value’)

            {// Action here.}

    }

}

readyState values:

0 – Represents an “uninitialized” state in which an XMLHttt pRequesobject has been created, but not initialized.

1 – Represents a “sent” state in which code has called the XMLHttpRequest open() method and the XMLHttpRequest is ready to send a request to the server.

2 – Represents a “sent” state in which a request has been sent to the server with the send() method, but a response has not yet been received.

3 – Represents a “receiving” state in which the HTTP response headers have been received, but message body has not yet been completely received.

4 – Represents a “loaded” state in which the response has been completely received.