Top Questions:

  • 5 years-11 months

    HTML5 Form Validation With the pattern (Regex) Attribute in html

    • Category : html
    • Location : Chandigarh, India
    • Posted On :
    • Posted by : Vikas

    This is another Client Side Validation strategy No JavaScript or jQuery required, Thanks to HTML5 in light of the fact that approvals should now be possible utilizing HTML5 without coding of javascript or any server side dialect, utilizing HTML5 you can approve frames with design, Forms must be approve either utilizing customer side or server side since it causes you to gather redress information or substantial shape esteems from the clients, you can't trust clients aimlessly, how about we see it.

    pattern="[A-Za-z] " accepts only capital or small letters. 
    <label>Name : (letters only)*</label>
    <input type="text" pattern="[A-Za-z] " title="only letters" required />
    
    pattern="[a-z0-9._% -] @[a-z0-9.-] \.[a-z]{2,4}$" accepts valid email address 
    <label>E-mail : (xyz@zyx.com)*</label>
    <input type="email" pattern="[a-z0-9._% -] @[a-z0-9.-] \.[a-z]{2,4}$" title="xyz@something.com" required />
    
    pattern="https?://. " required title="https://dorcode.com" accepts valid web url starting with http://. 
    <label>website : (https://dorcode.com)*</label>
    <input type="url"  pattern="https?://. " title="https://dorcode.com" required />
    
    pattern="[0-9] " accepts only numbers 0, 1, 2.... 
    <label>pin code : (numbers only)</label>
    <input type="text" pattern="[0-9] " title="numbers only" required />
    
    pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,}" accepts one number one upper and lower case letters with 8 or more chars. 
    <label>password : (at least 6 chars)</label>
    <input type="password" pattern=".{6,}" title="Six or more characters" required />
    
    pattern="^\d{10}$" accepts only numeric values with 10 digit. 
    <label>phone no : (10 chars)</label>
    <input type="tel" pattern="^\d{10}$" title="10 numeric characters only" required />
    
    pattern="^[a-zA-Z][a-zA-Z0-9-_\.]{5,12}$" accepts alphanumeric values letters and digits. 
     
  • 5 years-11 months

    Wordpress administrator page not showing up template name in template dropdown

    • Category : php
    • Location : Chandigarh, India
    • Posted On :
    • Posted by : Vikas

    There's a bug in Wordpress 4.9, I discovered this temporary super code. I plan on uninstalling it once they fix the bug, but it works great in the meantime!

    global $wpdb;
    $wpdb->query( "DELETE FROM `$wpdb->options` WHERE `option_name` LIKE '_transient_files_%' LIMIT 1" );
     
  • 5 years-11 months

    Dynamically loading an external JavaScript or CSS file using function

    • Category : php
    • Location : Chandigarh, India
    • Posted On :
    • Posted by : Vikas

    To load a .js or .css file dynamically, in a head section, it means using DOM methods to first create a new "SCRIPT" or "LINK" element, assign it the appropriate attributes, and finally, use element.appendChild() to add the element to the desired location within the document tree. It sounds a lot more fancy than it really is. Lets see how it all comes together

    <script type="text/javascript">
    // function
    function loadheadfile(filename, filetype){
    	if(filetype=="js"){
    		var fileref=document.createElement('script')
    		fileref.setAttribute("type","text/javascript")
    		fileref.setAttribute("src", filename)
    	}
    	else if(filetype=="css") {
    		var fileref=document.createElement("link")
    		fileref.setAttribute("rel", "stylesheet")
    		fileref.setAttribute("type", "text/css")
    		fileref.setAttribute("href", filename)
    	}
    	if(typeof fileref!="undefined")
    		document.getElementsByTagName("head")[0].appendChild(fileref)
    }
    
    
    // call function
    loadheadfile('https://tsuyoshiwada.github.io/sweet-scroll/lib/icomoon/style.css','css');
    </script>
     
  • 5 years-11 months

    How do I separate all YouTube video ids and links in a string using a regex

    • Category : php
    • Location : Chandigarh, India
    • Posted On :
    • Posted by : Vikas

    YouTube video Link may be encountered in a variety of formats:

    1.     latest short format: http://youtu.be/NLqAF9hrVbY
    2.     iframe: http://www.youtube.com/embed/NLqAF9hrVbY
    3.     iframe (secure): https://www.youtube.com/embed/NLqAF9hrVbY
    4.     object param: http://www.youtube.com/v/NLqAF9hrVbY?fs=1&hl=en_US
    5.     object embed: http://www.youtube.com/v/NLqAF9hrVbY?fs=1&hl=en_US
    6.     watch: http://www.youtube.com/watch?v=NLqAF9hrVbY
    7.     users: http://www.youtube.com/user/Scobleizer#p/u/1/1p3vcRhsYGo
    8.     ytscreeningroom: http://www.youtube.com/ytscreeningroom?v=NRHVzbJVx8I
    9.     any/subdomain/too: http://gdata.youtube.com/feeds/api/videos/NLqAF9hrVbY
    10.     more params: http://www.youtube.com/watch?v=spDj54kf-vY&feature=g-vrec
    11.     query may have dot: http://www.youtube.com/watch?v=spDj54kf-vY&feature=youtu.be
    12.     nocookie domain: http://www.youtube-nocookie.com
    function convertYoutube($string) {
    	$pattern='~(?#!js YouTubeId Rev:20160125_1800)
            # Match non-linked youtube URL in the wild. (Rev:20130823)
            https?://          # Required scheme. Either http or https.
            (?:[0-9A-Z-] \.)?  # Optional subdomain.
            (?:                # Group host alternatives.
              youtu\.be/       # Either youtu.be,
            | youtube          # or youtube.com or
              (?:-nocookie)?   # youtube-nocookie.com
              \.com            # followed by
              \S*?             # Allow anything up to VIDEO_ID,
              [^\w\s-]         # but char before ID is non-ID char.
            )                  # End host alternatives.
            ([\w-]{11})        # $1: VIDEO_ID is exactly 11 chars.
            (?=[^\w-]|$)       # Assert next char is non-ID or EOS.
            (?!                # Assert URL is not pre-linked.
              [?=& %\w.-]*     # Allow URL (query) remainder.
              (?:              # Group pre-linked alternatives.
                [\'"][^<>]*>   # Either inside a start tag,
              | </a>           # or inside <a> element text contents.
              )                # End recognized pre-linked alts.
            )                  # End negative lookahead assertion.
            [?=& %\w.-]*       # Consume any URL (query) remainder.
            ~ix';
    	preg_match_all($pattern,$string,$match);
    	$res=array();
    	$res['youtube']=$match;
    	$res['text']=preg_replace($pattern, '', $string);
    	return $res;
    }
    $text = "php find youtube link in string. How do I find all YouTube video ids in a string using a regex https://www.youtube.com/watch?v=ItTjUrTZ_JE Find youtube Link in PHP string and Convert it into embed code? Well, you need to filter out the youtube links first and put them into an string. Next you need to find out the youtube links of the url which is very easy. Use this script:";
    
    $all=convertYoutube($text);
    
    //print_r($all);
    
    echo $all['youtube'][1][0];	
    // ItTjUrTZ_JE
    
    echo $all['youtube'][0][0];	
    // https://www.youtube.com/watch?v=ItTjUrTZ_JE
    
    echo $all['text'];	
    // php find youtube link in string. How do I find all YouTube video ids in a string using a regex Find youtube Link in PHP string and Convert it into embed code? Well, you need to filter out the youtube links first and put them into an string. Next you need to find out the youtube links of the url which is very easy. Use this script:
    
  • 5 years-11 months

    how to force refresh after login in wordpress

    • Category : wordpress
    • Location : Chandigarh, India
    • Posted On :
    • Posted by : Vikas

    After wordpress login redirect page but not refresh so please try to add these lines in the top of the your wordpress theme file like header.php or wp-config.php

    header("Expires: Thu, 19 Nov 1981 08:52:00 GMT");
    header("Cache-Control: no-store, no-cache, must-revalidate");
     
  • 3 years-4 months

    How to Post File or Image Using PHP Curl

    • Category : php
    • Location : Chandigarh
    • Posted On :
    • Posted by : Guley

    Using this code you can upload and image using curl with third party role

    
       /*Send Page*/
    
       $filename = covertImage($filename);
       
       $fields = array(
                            'customer_name' => 'Gulshan Sharma',
                            'filename' => $filename,
    
                    );
                    $ch = curl_init();
                    curl_setopt($ch, CURLOPT_URL,'http:example.com/upload/');
                    curl_setopt($ch, CURLOPT_POST, 1);
                    curl_setopt($ch, CURLOPT_USERAGENT, "webapp");
                    //curl_setopt($ch, CURLOPT_POSTFIELDS,$fields);
    
                    // in real life you should use something like:
                    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($fields));
                    // receive server response ...
                    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
                    curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
                    curl_setopt($ch, CURLOPT_USERPWD, "xxx:xxx"); 
                    $server_output = curl_exec ($ch);
                    curl_close ($ch);
    
      function covertImage($path){
    
                $type = pathinfo($path, PATHINFO_EXTENSION);
                $data = file_get_contents($path);
                $base64 = 'data:image/' . $type . ';base64,' . base64_encode($data);
                return $base64;
       }
     /*RecivePage*/
    
       $filename = base64_to_jpeg($_POST['filename']);
       
       echo $filename;
       
       function base64_to_jpeg($base64_string) {
                         $upload_path = '/hosted-libraries/temp/';
                        $upload_path = $_SERVER['DOCUMENT_ROOT'] . $upload_path;
                        $newImg = uniqid();
                        $img = str_replace('data:image/png;base64,', '', $base64_string);
                        $img = str_replace(' ', ' ', $img);
                        $data = base64_decode($img);
                        $file = $upload_path . $newImg . '.png';
                        $success = file_put_contents($file, $data);
                        if($success)
                            return $file;
                        else
                            FALSE;
                       
         }
  • 3 years-4 months

    Jquery hide network requests from inspect element

    • Category : jquery
    • Location : Chandigarh
    • Posted On :
    • Posted by : Guley

    Using this module you can hide requested parameters from inspect element

    var http = new XMLHttpRequest();
    var url = "Url Path";
    var params ='Your parameters';
    http.open("GET", url, true);
    
    //Send the proper header information along with the request
    http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    
    http.onreadystatechange = function() {//Call a function when the state changes.
        if(http.readyState == 4 && http.status == 200) {
            console.log(http.responseText);
        }
    http.send(params);
    }
     
  • 5 years-11 months

    How to add, change and delete subscribers to a list using Mailchimp's rest API v3 with Php

    • Category : php
    • Location : Chandigarh, India
    • Posted On :
    • Posted by : Vikas

    MailChimp REST Api V3 exposes methods that allows you to add, change subscribed to unsubscribed, delete list member and get all member list of a specific MailChimp list.

    The following code snippet help you to add a new subscriber to MailChimp List.
    <?php
    $api_key = 'API_KEY';
    $list_id = 'LIST_ID';
    
    $dataCenter = substr($api_key,strpos($api_key,'-') + 1);
    $url = 'https://'.$dataCenter.'.api.mailchimp.com/3.0/lists/'.$list_id.'/members';
       $pfb_data = array(
        'email_address' => "YOUR_EMAIL_ID",
        'status'        => 'subscribed',
        'merge_fields'  => array(
          'FNAME'       => "YOUR_FIRST_NAME",
          'LNAME'       => "YOUR_LAST_NAME"
        ),
      );
    
    // connect and get results
    $result = json_decode( dorcode_mailchimp_curl_connect( $url, 'POST',$api_key, $pfb_data ) );
    
    if( $result->status == 400){
    	// error
       echo "already subscriber.";
    } elseif( $result->status == 'subscribed') {
    	// success
    	echo "subscribered";
    }
    ?>
    MailChimp change subscribed to unsubscribed.
    <?php
    $api_key = 'API_KEY';
    $list_id = 'LIST_ID';
    $email_to_unsubscribe = 'YOUR_EMAIL_ID';
    
    $dataCenter = substr($api_key,strpos($api_key,'-')+ 1);
    $url = 'https://'.$dataCenter.'.api.mailchimp.com/3.0/lists/'.$list_id.'/members/'.md5($email_to_unsubscribe);
    $result = json_decode(dorcode_mailchimp_curl_connect($url, 'PUT',$api_key, array('status'=>'unsubscribed')));
    if( $result->status == 400){
    	// error
        echo $result->errors[0]->message;
    } elseif( $result->status == 'unsubscribed') {
    	// success
        echo "unsubscribed";
    }
    ?>
    MailChimp delete list member.
    <?php
    $api_key = 'API_KEY';
    $list_id = 'LIST_ID';
    $email_to_unsubscribe = 'YOUR_EMAIL_ID';
    
    $dataCenter = substr($api_key,strpos($api_key,'-')+ 1);
    $url = 'https://'.$dataCenter.'.api.mailchimp.com/3.0/lists/'.$list_id.'/members/'.md5($email_to_unsubscribe);
    $result = json_decode(dorcode_mailchimp_curl_connect($url, 'DELETE',$api_key, array('status'=>'DELETE')));
    echo $result; // output "null"
    ?>
    MailChimp get all member list.
    <?php
    $api_key = 'API_KEY';
    $list_id = 'LIST_ID';
    
    $dataCenter = substr($api_key,strpos($api_key,'-')+ 1);
    $url = 'https://'.$dataCenter.'.api.mailchimp.com/3.0/lists/'.$list_id;
    $body = json_decode(dorcode_mailchimp_curl_connect($url,'GET',$api_key));
    
    // number of members in this list
    $member_count = $body->stats->member_count;
    $email = array();
     
    for( $offset = 0; $offset < ($member_count+50); $offset  = $offset+50 ) :
        $data = array(
            'offset' => $offset,
            'count'  => 50
        );
        // URL to connect
        $url = 'https://'.$dataCenter.'.api.mailchimp.com/3.0/lists/'.$list_id.'/members';
        // connect and get results
        $body = json_decode(dorcode_mailchimp_curl_connect($url, 'GET',$api_key, $data));
        foreach ( $body->members as $member ) {
        	// if($member->status=="subscribed") if you want to get members where status is subscribed
              $email[] = $member->email_address;
        }
    endfor;
    print_r($email);
    ?>
    MailChimp curl main php function.
    <?php
    function dorcode_mailchimp_curl_connect($url, $request_type, $api_key, $data = array()) {
    
    
        if( $request_type == 'GET' )
            $url .= '?' . http_build_query($data);
     
        $mch = curl_init();
        $headers = array(
            'Content-Type: application/json',
            'Authorization: Basic '.base64_encode( 'user:'. $api_key )
        );
        curl_setopt($mch, CURLOPT_URL, $url );
        curl_setopt($mch, CURLOPT_HTTPHEADER, $headers);
        //curl_setopt($mch, CURLOPT_USERAGENT, 'PHP-MCAPI/2.0');
        curl_setopt($mch, CURLOPT_RETURNTRANSFER, true); // do not echo the result, write it into variable
        curl_setopt($mch, CURLOPT_CUSTOMREQUEST, $request_type); // according to MailChimp API: POST/GET/PATCH/PUT/DELETE
        curl_setopt($mch, CURLOPT_TIMEOUT, 10);
        curl_setopt($mch, CURLOPT_SSL_VERIFYPEER, false); // certificate verification for TLS/SSL connection
     
        if( $request_type != 'GET' ) {
            curl_setopt($mch, CURLOPT_POST, true);
            curl_setopt($mch, CURLOPT_POSTFIELDS, json_encode($data)); // send data in json
        }
     
        return curl_exec($mch);
    }
    
    ?>
     
  • 5 years-11 months

    How to Add Pagination in Your WordPress Theme or Core Php

    • Category : php
    • Location : Chandigarh, India
    • Posted On :
    • Posted by : Vikas

    WordPress offers built-in functionality for navigating through posts. Theme developers can use simple default wordpress pagination function or other pagination function for better customize.

    // Create table in mysql
    CREATE TABLE `your_table_name` (
      `id` int(11) NOT NULL AUTO_INCREMENT,
      `title` varchar(200) NOT NULL,
      `addtime` int(20) NOT NULL,
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=latin1;
    
    // Insert table data
    INSERT INTO `your_table_name` (`id`, `title`, `addtime`) VALUES
    (1, 'test', 1299446702);	// addtime is timestamp
    
    
    
    <?php
    // insert this code where your want to add pagination
    // ----------- code start -----------
    
    $table_name =  "your_table_name"; 	// enter your table name
    $item_per_page=5;					// enter number 
    
    $all = $wpdb->get_row( "SELECT count(*) as total FROM {$table_name} WHERE 1=1", ARRAY_A );
    $page_number = (get_query_var('page')) ? get_query_var('page') : 1;
    $offset = ($page_number - 1) * $item_per_page;
    $data = $wpdb->get_results( "SELECT * FROM {$table_name} WHERE 1=1 ORDER BY id DESC LIMIT $offset,$item_per_page", ARRAY_A );
    $cou=$page_number*$item_per_page;
    ?>
    
    <h2>Results <?=$page_number ?>-<?=($cou>$all['total'])?$all['total']:$cou ?> of <?=$all['total'] ?></h2>
    <ul class="pagination">
    	<?php echo pagination($all['total'], $item_per_page, $page_number, site_url()."/your-page-name/?page=%d"); ?>
    </ul>
    
    
    <?php
    foreach ($data as $one) {
    ?>
    		<?=$one['id'] ?> <br />
    		<?=$one['title'] ?>
    <?php
    }
    ?>
    // ----------- code end -----------
    
    
    // add function.php in wordpress----------- code start ----
    
    function pagination($item_count, $limit, $cur_page, $link)
    {
           $page_count = ceil($item_count/$limit);
           $current_range = array(($cur_page-2 < 1 ? 1 : $cur_page-2), ($cur_page 2 > $page_count ? $page_count : $cur_page 2));
    
           // First and Last pages
           $first_page = $cur_page > 3 ? '<a href="'.sprintf($link, '1').'">1</a>'.($cur_page < 5 ? ', ' : ' ... ') : null;
           $last_page = $cur_page < $page_count-2 ? ($cur_page > $page_count-4 ? ', ' : ' ... ').'<a href="'.sprintf($link, $page_count).'">'.$page_count.'</a>' : null;
    
           // Previous and next page
           $previous_page = $cur_page > 1 ? '<a href="'.sprintf($link, ($cur_page-1)).'">&lt;&lt;</a>  ' : null;
           $next_page = $cur_page < $page_count ? '  <a href="'.sprintf($link, ($cur_page 1)).'">&gt;&gt;</a>' : null;
    
           // Display pages that are in range
           for ($x=$current_range[0];$x <= $current_range[1];   $x)
                   $pages[] = '<a href="'.sprintf($link, $x).'">'.($x == $cur_page ? '<strong>'.$x.'</strong>' : $x).'</a>';
    
           if ($page_count > 1)
                   return '<p class="pagination">'.$previous_page.$first_page.implode('&nbsp;&nbsp;', $pages).$last_page.$next_page.'</p>';
    }
    
    // add function.php in wordpress----------- code end ----
  • 5 years-11 months

    how to use ajax in wordpress page

    • Category : php
    • Location : Chandigarh, India
    • Posted On :
    • Posted by : Vikas

    This article, aimed at plugin developers, describes how to add Ajax to a plugin or page. Before reading this article, you should be familiar with the following

    // function.php in Wordpress -------- Start Code--------
    add_action('wp_head', 'dorcode_ajaxurl');
    function dorcode_ajaxurl() {
       echo '<script type="text/javascript">
               var ajaxurl = "'.admin_url('admin-ajax.php').'";
            </script>';
    }
    
    
    add_action( 'wp_ajax_your_dorcode', 'my_dorcode' );
    add_action( 'wp_ajax_nopriv_your_dorcode', 'my_dorcode' );
    
    function my_dorcode() {
    	$data_id = intval( $_POST['data_id'] );
        echo $data_id;
        wp_die();
    }
    // function.php in Wordpress -------- End Code--------
    
    
    
    // Anywhere in Wordpress -------- Start Code--------
    
    // if you need
    var ajaxurl = "<?php echo admin_url('admin-ajax.php') ?>";
    jQuery(document).ready(function($) {
    	var data = {
    		'action': 'your_dorcode',
    		'data_id': 1525
    	};
    	jQuery.post(ajaxurl, data, function(response) {
    		alert('Got this from the server:' + response);
    	});
    
    });
    // Anywhere in Wordpress -------- End Code--------