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Form validation plugin php

form validation library in php

Hi Geeks, Today i am sharing a generic class for Form validation library in php & it also populate if form validation failed. First of all you can download the ‘form validation library in php’ by clicking on following url. https://github.com/g10dra/form_validation_php/blob/master/class.validation.php Now in this class you can validate the require,numeric,file-extension,match password & confirm password,validate url and other validation also. It is having a validation with database like is_unique in mysql database where you need pass the db connection if you want to user is_unique validation. Step 1: Include & Initialize the class in header or before your form s following: //include the form validation class// require 'class.validation.php'; or any of your path where you have save the class $db_details=array();//array for db details for validation some fields like is_unique from DB. //pass the varribale dynamic or static $db_details['db_host']=DB_HOST; $db_details['db_user']=DB_USER; $db_details['db_password']=DB_PASS; $db_details['db_name']=DB_NAME; $validation= new validation($db_details); // Step 2: Create a HTML FORM we are assuming that we have a form for add/edit ‘Advertise campaign’ form Read the full comments in code Add / Update Campaign num_rows( $query ) > 0 ) { $_edited_data = $database->get_results( $query ); $_edited_data=$_edited_data[0]; } else{ header("location:campaign.php?err=something bad happen !"); } } else { //add time initialize the blank data in edit data varriable ,if we are add action $_edited_data=array(); $_edited_data['ad_name']=""; $_edited_data['end_url']=""; $_edited_data['campaign_type']=""; $_edited_data['dimension']=""; $_edited_data['is_active']=""; } ?> </div> <div class="panel-body"> <form enctype="multipart/form-data" method="post"> <input type="hidden" name="is_post" value="1" />  <input type="hidden" name="edit_id" value="<?php echo (isset($_GET['id']))? $_GET['id'] : "0"; ?>" />  <fieldset> <div class="form-group"> <label>Ad Campaign Name</label> <input value="<?php echo $validation->set_val("ad_name",$_edited_data['ad_name']); ?>" name="ad_name" class="form-control" placeholder="Ad campaign name" type="text"> <?php echo $validation->error_message("ad_name","<span style='color:red'>"); ?>  </div> <div class="form-group"> <label>Target url</label> <input value="<?php echo $validation->set_val("end_url",$_edited_data['end_url']); ?>" name="end_url" class="form-control" placeholder="Target Url" type="text"> <?php echo $validation->error_message("end_url","<span style='color:red'>"); ?> </div> <div class="form-group"> <label>Creative Banner</label> <input class="form-control" name="ad_media_file" type="file" > <?php if(isset($_edited_data['ad_media_file']) && $_edited_data['ad_media_file']!="") { echo '<img style="max-width:300px;height:auto" src="AD_MEDIA/'.$_edited_data['ad_media_file'].'" />'; } echo $validation->error_message("ad_media_file","<span style='color:red'>"); ?> </div> <div class="form-group"> <label>Campaign Type</label> <select <?php if(isset($_GET['id']) && $_GET['id']!=""){ echo "disabled"; } ?> name="campaign_type" class="form-control input-md"> <option <?php echo $validation->set_select("campaign_type","1",$_edited_data['campaign_type']); ?> value="1">CTR (Click basis)</option> <option <?php echo $validation->set_select("campaign_type","2",$_edited_data['campaign_type']); ?> value="2">CPM (impression every 1k)</option> </select>  </div> </div> <div class="form-group"> <label>Ad Campaign Status </label> <select name="is_active" class="form-control input-md"> <option <?php echo $validation->set_select("is_active","1",$_edited_data['is_active']); ?> value="1">Enabled</option> <option <?php echo $validation->set_select("is_active","0",$_edited_data['is_active']); ?> value="0">Disabled</option> </select> </div> </fieldset> <div> <button type="submit" class="btn btn-primary"> <i class="fa fa-save"></i> Submit </button> </div> </form> </div> </div>Step 3: Create a Table for advertise add/edit using following sql dump CREATE TABLE IF NOT EXISTS tbl_ads ( a_id int(11) NOT NULL AUTO_INCREMENT, user_id int(11) NOT NULL, ad_name varchar(255) NOT NULL, ad_media_file text NOT NULL, end_url tinytext NOT NULL, total_impression int(11) NOT NULL, campaign_type enum('1','2') NOT NULL COMMENT '1 for click base 2 for impression', is_active enum('0','1') NOT NULL DEFAULT '1', approved enum('0','1') NOT NULL DEFAULT '0', is_delete enum('0','1') NOT NULL DEFAULT '0', added_date datetime NOT NULL, updated_date datetime NOT NULL, remark text NOT NULL, PRIMARY KEY (a_id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; Step 4: Now need to post the form and recieve data and show errors, Recieve post Before the HTML form if(isset($_POST['is_post'])) //check form is posted { extract($_POST);//extract the form in its filed name vars using php function extract //now create a is_unique rule for ad name for AD/EDIT MOde both if(isset($edit_id) && $edit_id!=0)//it means it is in edit mode { $is_unique_expression="tbl_ads::ad_name::a_id!=".$edit_id; } else { $is_unique_expression="tbl_ads::ad_name"; } /* So for -> is_unique_expression :: First data is for table_name second is for column_name to match third is for where_condition in edit case or any specific requirement (optional) ALl are seperated with :: (double colon) / //validation rules $config_validation=array( array('field'=>"ad_name", "label"=>"Ad Campaign Name", "rules"=>"required|is_unique[".$is_unique_expression."]", ), array('field'=>"campaign_type", "label"=>"Campaign Type", "rules"=>"required", ), array('field'=>"is_active", "label"=>"Ad Campaign Status", "rules"=>"required", ), array('field'=>"ad_media_file", "label"=>"Creative Banner", "rules"=>"file_required|valid_file[AD_MEDIA::png,jpg,jpeg,gif]", ), array('field'=>"end_url", "label"=>"Target Url", "rules"=>"required|valid_url", ) ); //rule names must seperated with pipe | / rule => usage required => means must required item valid_url => used for validate a url format file_required => user to set must upload validation for a input type file valid_file => valid file passes a string for validate file time in [] fist is the folder name seperated with double column :: second is for extnsions seperated with comma (,) is_unique => used for matching value already exist in database or not for both edit and add case, in edit case we can pass the extra where case for self safe */ //now pass the configuration array of fileds $validation->init($config_validation); //if form successfully submitted by passing all rules// if($validation->form_success==1) { //do whatever want to do if(isset($edit_id) && $edit_id!=0) //detect it is in edit mode { $ad_media_file = (isset($validation->return_array['ad_media_file']))?$validation->return_array['ad_media_file']:""; //$validation->return_array is a array set the key with file field name if file successfully posted. //means it set the file field name key in '$validation->return_array' with input type file name. //so we can get the uploaded file name by passing the file type field name in $validation->return_array like this >> $validation->return_array['ad_media_file']; //this is save action when we edit any item $date=date('Y-m-d H:i:s'); $update = array( 'ad_name' => $ad_name, 'is_active' => $is_active, 'dimension' => $dimension, 'end_url' => $end_url, 'updated_date' => $date ); if($ad_media_file!="") { $update['ad_media_file'] = $ad_media_file; } //Add the WHERE clauses $where_clause = array( 'a_id' => $edit_id ); $updated = $database->update( 'tbl_ads', $update, $where_clause, 1 ); if( $updated ) { header('location:campaign.php?msg=Ad Campaign Updated Successfully!'); } } else { //detect that form post done for add a new campaign $ad_media_file = $validation->return_array['ad_media_file']; //this is add action where we add new item $date=date('Y-m-d H:i:s'); $data = array( 'ad_name' => $ad_name, 'campaign_type' => $campaign_type, 'user_id' => $_SESSION['user_id'], 'is_active' => $is_active, 'dimension' => $dimension, 'ad_media_file' => $ad_media_file, 'end_url' => $end_url, 'added_date' => $date, 'updated_date' => $date ); $add_query = $database->insert( 'tbl_ads', $data ); if( $add_query ) { header('location:campaign.php?msg=Ad Campaign Added Successfully!'); } } //do whatever want to do } else{ //echo ""; //print_r($validation->errors_array); //die; //$validation->errors_array is the complete array with all errors of form. } } Please Comment If any problem in this. I’ll assist you to use this form validation library