PHPOnlineSupport - Recent questions and answers

Answered: How to solve warning error on php?

Fri, 05 Aug 2022 11:33:28 +0000

A warning error in PHP does not stop the script from running. It only warns you that there is a problem,

Answered: The server requested authentication method unknown to the client

Wed, 16 Feb 2022 12:43:36 +0000

Just change your cpanel password and it will work.

If the option checkbox for updating the mysql password is also present , check that also while updating the cpanel password.

Answered: json_encode Uncaught SyntaxError: JSON.parse: unexpected character at line 1 column 2 of the JSON data

Thu, 03 Feb 2022 19:21:47 +0000

That JSON is already parsed. You dont need to parse it again which will produce that error. Remove that line and it should work ok.

Answered: Day.js date difference not working

Wed, 26 Jan 2022 21:34:31 +0000

In my experience, the day difference with format will not work. Its the same with moment.js and Day.js

Try this

    var date1 = dayjs(field_data);
    var date2 = dayjs();
    var diff = date1.diff(date2, 'day');

alert(diff);

Answered: Find difference between two dates

Wed, 26 Jan 2022 20:53:36 +0000

Yes, you can use Jquery calendar, Moment.js, Day.js etc

I personanlly recommend the Day.js as its very lightweight

<script src="https://unpkg.com/dayjs@1.8.21/dayjs.min.js"></script>
<script>dayjs().format()</script>

    const date1 = dayjs('2019-01-25')
    const date2 = dayjs('2019-01-26')
    var diff = date1.diff(date2, 'day')

Answered: How to format date and time in Day.js

Wed, 26 Jan 2022 20:44:44 +0000

Take a look at

https://day.js.org/docs/en/display/format

Not sure what the problem is. You need to explain if there is a specific problem, then only we can help.

Answered: DataTables help unknown parameter for row

Wed, 26 Jan 2022 20:00:55 +0000

Either you are not retrieving value for that said field.

OR

You are not returning value for that field from your render function.

as a solution overall, you may add a default content wit the code like this

{ "defaultContent": "-", "targets": "_all" }

Answered: php get text after character

Sun, 23 Jan 2022 20:25:15 +0000

<?php
$my_string = 'yourSomeText.AND another';
echo substr($my_string, strrpos($my_string, '.' )+1)."\n";
?>

Answered: What are the different types of PHP variables?

Fri, 29 Oct 2021 10:06:08 +0000

There are 8 data types in PHP which are used to construct the variables:

Integers − are whole numbers, without a decimal point, like 4195.
Doubles − are floating-point numbers, like 3.14159 or 49.1.
Booleans − have only two possible values either true or false.
NULL − is a special type that only has one value: NULL.
Strings − are sequences of characters, like ‘PHP supports string operations.’
Arrays − are named and indexed collections of other values.
Objects − are instances of programmer-defined classes, which can package up both other kinds of values and functions that are specific to the class.
Resources − are special variables that hold references to resources external to PHP.

Answered: What is PEAR in PHP?

Fri, 29 Oct 2021 09:57:37 +0000

PEAR is a framework and repository for reusable PHP components. PEAR stands for PHP Extension and Application Repository. It contains all types of PHP code snippets and libraries. It also provides a command line interface to install “packages” automatically.

Answered: What is the meaning of ‘escaping to PHP’

Fri, 29 Oct 2021 09:55:07 +0000

The PHP parsing engine needs a way to differentiate PHP code from other elements in the page. The mechanism for doing so is known as ‘escaping to PHP’. Escaping a string means to reduce ambiguity in quotes used in that string.

PHP: Can PHP cURL retrieve response headers AND body in a single request?

Fri, 29 Oct 2021 09:44:18 +0000

How notice error displayed on php program?

Mon, 04 Oct 2021 04:17:03 +0000

Answered: Disable firefox startup popup update notification

Wed, 29 Sep 2021 19:14:37 +0000

Check this pref on the about:config page:

app.update.doorhanger = false

Answered: How to delete an ArduinoJson nested key

Wed, 29 Sep 2021 18:37:25 +0000

If you are using the v5 of ArduinoJson

doc["H"].remove("J");

If you are using the v6 of ArduinoJson

JsonObject& hobj = root["H"];
hobj.remove("J");

Answered: XCTU not detecting my Xbee

Fri, 24 Sep 2021 18:51:22 +0000

Could be there a handful of reasons. But you can try the below as your best bet.

Firstly do the scan resetting the options to default.

Send an AT command to reset the Xbee all to its default settings through its serial using an Arduino or something.

Should do the magic for you.

Answered: Why can't I change XBEE channel in XCTU

Thu, 23 Sep 2021 18:24:40 +0000

I think you are referring to the CH value? If so, that cannot be changed. It's readable only.

It should be the SC that you are looking for. Generally the below should be the min to do.

PAN ID (ID). Every node should have the same value.
Scan Channels (SC). Every node should have the same value.
Channel Verification (JV). This setting should be enabled to ensure there is a coordinator in the network.

If you have a secured network, and if you don't want to loose the modules after power cycle, you can set JV=0 so that the module retain its parent and search for the parent in the specified PAN ID after power ON. In your case as said, CH value cannot be changed. It is Read-Only parameter. You can issue NR0 to reset the networking parameters. Or write the firmware again with default settings.

Answered: Detect Serial1 on Arduino UNO and MEGA

Thu, 23 Sep 2021 17:22:03 +0000

You can use HAVE_HWSERIAL1, HAVE_HWSERIAL2 etc etc. See below I used for my xbee. If mega, the xbee is supposed to run on Serial1 and while on a UNO its supposed to be with the Serial

  #ifdef HAVE_HWSERIAL1
    Serial1.begin(BAUDRATE);
    myArduino.xbee.setSerial(Serial1);
  #else
    myArduino.xbee.setSerial(Serial);
  #endif

Answered: Restart arduino using code

Sun, 19 Sep 2021 18:12:35 +0000

write the function as below.

void(* resetFunc) (void) = 0;

then call it as you need

resetFunc();

Answered: Can Arduino Baud Rate be changed at Runtime?

Sun, 19 Sep 2021 17:55:59 +0000

Serial.begin(9600);
while(Serial.available()) Serial.read();

// Do some ping-pong and check if something is coming along.
// If not change the Baud and try again

Serial.flush();
Serial.begin(115200);
while(Serial.available()) Serial.read();

Answered: MongoDB running on MAC - directory /data/db not found

Sun, 19 Sep 2021 17:29:30 +0000

Create new folder in the root sudo mkdir -p /data/db/ and then run the following command

sudo chown `id -u` /data/db

Answered: ArduinoJSON to char

Sun, 19 Sep 2021 17:27:29 +0000

Try

root["H"].as<String>().toCharArray(charVar, KEY_SIZE);

Answered: Fix for “invalid use of non-static member function” in a library

Sun, 19 Sep 2021 17:25:02 +0000

Ok, so you are trying to call a callback function which should indeed work like this. Wrap that class function to another function like this.

data_retry_timer = myArduino.arduino_timer.setInterval(PIN_DATA_SEND_RETRY_INTERVAL*1500, arduino_try_any_pending_server_updates);

void arduino_try_any_pending_server_updates()
{
myArduino.arduino_try_any_pending_server_updates();
}

This should work, I have not tested though.

Answered: What is the difference between public, private, and protected?

Fri, 04 Jun 2021 04:48:03 +0000

Public scope to make that property/method available from anywhere, other classes and instances of the object.
Private scope when you want your property/method to be visible in its own class only.
Protected scope when you want to make your property/method visible in all classes that extend current class including the parent class.

Answered: Getting Current date, time , day in laravel

Thu, 03 Jun 2021 09:56:44 +0000

Laravel has the Carbon dependency attached to it.

Carbon::now(), include the Carbon\Carbon namespace if necessary.

Edit (usage and docs)

Say I want to retrieve the date and time and output it as a string.

$mytime = Carbon\Carbon::now();

echo $mytime->toDateTimeString();

This will output in the usual format of Y-m-d H:i:s, there are many pre-created formats and you will unlikely need to mess with PHP date time strings again with Carbon.

Answered: Get the Last Inserted Id Using Laravel Eloquent

Thu, 03 Jun 2021 09:29:37 +0000

After save, $data->id should be the last id inserted.

$data->save();

$data->id;

Can be used like this.

return Response::json(array('success' => true, 'last_insert_id' => $data->id), 200);

For updated laravel version try this

return response()->json(array('success' => true, 'last_insert_id' => $data->id), 200);

Answered: How to fix repeating data from SQL join?

Thu, 03 Jun 2021 09:07:16 +0000

Include the date comparison in the on clause:

FROM table1 JOIN
     table2
     ON table1.PERSON_ID = table2.PERSON_ID AND
        table2.EFFECTIVE_DATE BETWEEN table1.START_OF_SCHOOL AND table1.END_OF_SCHOOL

Answered: Get tables which using [DEFAULT CURRENT_TIMESTAMP] in mysql?

Wed, 02 Jun 2021 12:22:43 +0000

Use,

SELECT TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME, DATA_TYPE
FROM INFORMATION_SCHEMA.COLUMNS
WHERE COLUMN_DEFAULT = 'CURRENT_TIMESTAMP'
-- AND TABLE_SCHEMA = DATABASE();

Answered: Google ReCaptcha is active but not preventing spam

Wed, 02 Jun 2021 11:32:46 +0000

You can add a honeypot on you form. A honeypot is a field added to the form that the users can’t see due to CSS or JavaScript (which hides the field). When a spam bot comes to a form, it fills out EVERY input field, but it ignores the CSS code. This is the behavior we can exploit. You would create a regular form input field with HTML (this will be the honeypot field). The spam bot will see the field, but you’ll use JavaScript to hide the field from users. If the honeypot field is empty, the Javascript code would submit the form. On the other hand, if the honeypot field has data, you know it could only have been filled out by a spam bot.

Answered: What database actually FACEBOOK uses?

Wed, 02 Jun 2021 10:02:18 +0000

Facebook primarily uses MySQL for structured data storage such as wall posts, user information, timeline etc. This data is replicated between their various data centers.

Answered: Change Fetched Date format in View

Wed, 02 Jun 2021 08:54:24 +0000

In date format function use F for Full month Display.

$date = "12-12-2015";

echo date("F d, Y", strtotime($date));

Answered: Dynamically add textbox, input in html form using JavaScript.

Wed, 02 Jun 2021 08:48:53 +0000

var input = document.createElement("input");

input.setAttribute("type", "hidden");

input.setAttribute("name", "name_you_want");

input.setAttribute("value", "value_you_want");

//append to form element that you want .
document.getElementById("chells").appendChild(input);

Answered: How to Redirect Non-www to www URLs using htaccess ?

Wed, 26 May 2021 12:11:22 +0000

You need to add

RewriteCond %{HTTP_HOST} !^www.example.com$ [NC]
RewriteRule ^(.*)$ http://www.example.com/$1 [L,R=301]

in .htaccess file. Note that you must put the above lines somewhere after RewriteEngine On line.

Answered: Difference between get and post on php

Wed, 26 May 2021 04:38:32 +0000

GET method is used to appends form data to the URL in name or value pair. The page and the encoded information are separated by the ? character.

The POST method transfers information via HTTP headers. The information is encoded as described in case of GET method and put into a header called QUERY_STRING.

Answered: reCAPTCHA problem ''Please complete the anti-spam verification''

Wed, 26 May 2021 04:18:33 +0000

It may due to server permission issue. For some security reasons, in shared hosting account allow_url_fopen is disabled by default. You need to check phpinfo(); if allow_url_fopen is off then modify the custom php.ini file as allow_url_fopen = On

Answered: Why no site links listed on google search?

Fri, 13 Dec 2019 03:49:05 +0000

Google does not show sitelinks for all websites. The fact that it may decide to show sitelinks when users search for your domain name or for particular queries, it’s a signal of google trust.

You cannot directly specify which pages Google should use as sitelinks. They are chosen automatically by the Google algorithm based on the user query.

Answered: Adblocker blocking WP blog images

Mon, 18 Nov 2019 15:29:00 +0000

Check if there are any probable blacklisted words in the url your blog images. There could be probably words like "ad", "ads" or "300x200" or something like that, which could resemble an ad image. Replacing this would solve the issue as well.

Answered: Scan QR code using a samsung phone

Thu, 14 Nov 2019 06:25:03 +0000

You can do it using Bixby Vision on your phone (if its after the s7 series)

OR

If your Galaxy device doesn't support Bixby Vision, you are still able to scan QR Codes however this will be directly through Samsung Internet or Samsung Internet (Beta). Usually the Samsung Internet application is pre-installed on later Galaxy devices however if you have uninstalled this app or you are unable to locate this app within your apps tray, you can easily download it from the Google PlayStore.

Samsung Internet makes separate QR code reader apps totally irrelevant. Samsung's browser includes a QR code reader directly in-app, which makes scanning website QR codes a breeze. Just enable "QR code reader" in the Extensions menu, then tap the three dots to access "Scan QR Code" at any time.

You will need to enable the QR code scanner from the extensions of the internet browser.

Answered: Mailchimp automatic feed mailing with custom design

Wed, 13 Nov 2019 06:40:52 +0000

Solution for your issue is to make a custom feed with the whole HTML needed for your newsletter and pass it as a feed to the mailchimp. Note that the mailchimp processor will strip the html tags if not instructed not to do so. Passing contents through feed within a CDATA tag would do the trick, which will bypass the mailchimp processor. See below example data that should be passed in the description section of a feed.

<![CDATA[

Your full custom html (full newsletter html) here...

]]>

Answered: Notification popups that can allow intractions on page

Wed, 13 Nov 2019 03:49:07 +0000

Use Pnotify

https://sciactive.com/pnotify/

It is good for your requirement here.

Answered: View hidden folders Mac

Sun, 10 Nov 2019 09:23:15 +0000

Here is the shortcut for Mac. Go to the root folder and press the keys

Command + Shift + . (dot)

Answered: How to add auto numbering column to a Jquery datatable?

Wed, 05 Dec 2018 05:57:07 +0000

$(document).ready(function() {
    var t = $('#example').DataTable( {
        "columnDefs": [ {
            "searchable": false,
            "orderable": false,
            "targets": 0
        } ],
        "order": [[ 1, 'asc' ]]
    } );
 
    t.on( 'order.dt search.dt', function () {
        t.column(0, {search:'applied', order:'applied'}).nodes().each( function (cell, i) {
            cell.innerHTML = i+1;
        } );
    } ).draw();
} );

Answered: Wordpress custom page without footer header and sidebar

Thu, 22 Nov 2018 23:52:50 +0000

Step 1 - Create a WordPress page template le
In your local computer, create a text file, copy the following code and save it as "no-head-foot.php".

Step 2- Upload the le to your WordPress theme folder
FTP the created file no-head-foot.php to your WordPress theme folder, which is wp-
content -> themes -> yourthemename.

Step 3 - Select the template in the WordPress page editor
In the WordPress page editor, Page Attributes tab, choose Clean Page from the
Template drop-down list.

This should do the trick.

Also refer https://www.wonderplugin.com/wp-content/uploads/2017/06/How-to-create-a-WordPress-page-without-header-menu-sidebar-and-footer.pdf

Answered: How to hide admin bar (admin toolbar) from frontend?

Thu, 22 Nov 2018 23:45:15 +0000

Add this to your page, and it should do the trick.

show_admin_bar( false );

Refer here for more info https://codex.wordpress.org/Function_Reference/show_admin_bar

Answered: Strange “1” displayed at the end of a php print_r ?

Mon, 19 Nov 2018 22:29:07 +0000

Remove the echo before print_r

the print_r is supposed to return true/false which is displayed as 1 with the echo.

So you only need the following.

        echo '<pre>'
        print_r($validation->getErrorFields());
        echo '</pre>'

Answered: wp get_current_user_id() returns 0

Thu, 08 Nov 2018 19:03:26 +0000

You need to init before that.

add_action('init', 'my_user_id_Function');

function my_user_id_Function()
{
return get_current_user_id();
}

echo my_user_id_Function();

Answered: How do I include $wpdb in wordpress plugin?

Fri, 02 Nov 2018 18:57:30 +0000

global $wpdb, $table_prefix;

if(!isset($wpdb))
{
include_once(ABSPATH.'wp-config.php');
include_once(ABSPATH.'wp-includes/wp-db.php');
}

Answered: Fatal error: Call to undefined function wp_get_current_user() in

Fri, 02 Nov 2018 18:47:10 +0000

include_once(ABSPATH . "wp-includes/pluggable.php");
Add this to the top of that page.

Should be fine.

Answered: Where is my mongodb database?

Tue, 23 Oct 2018 22:12:56 +0000

Mongodb is different from the mysql and similar. You need to create a collection and probably insert a data also to actually create the DB.

XBee print source address

Wed, 10 Oct 2018 22:50:27 +0000

How to print the address of the xbee that the message is sent from?