how to get the number of days of the current month in PHP ?

cal_days_in_month — Return the number of days in a month for a given year and calendar

Description 

cal_days_in_month ( int $calendar , int $month , int $year ) : int

This function will return the number of days in the month of year for the specified calendar.

The length in days of the selected month in the given calendar

More details


example

             $m1=date('Y-m-d',strtotime($date_of_join));            
           
             $mon_num = date("m",strtotime($m1));
             $curr_year = date("Y",strtotime($m1));

            $num = cal_days_in_month(CAL_GREGORIAN, $mon_num, $curr_year);

PHP code for find number of days form given month and year ?

<?php

$month = 2;
$year = 2020;

$days = $month == 2 ? ($year % 4 ? 28 : ($year % 100 ? 29 : ($year % 400 ? 28 : 29))) : (($month - 1) % 7 % 2 ? 30 : 31);

echo $days;

?>

Android Scrolling text in Textview

Android auto scrolling text

This tutorial explain to scroll text message on activity.

How to make Marquee text in Android?

Property as marquee

android:ellipsize = "marquee"
android:fadingEdge = "horizontal"
android:marqueeRepeatLimit = "marquee_forever"
android:scrollHorizontally = "true"
android:singleLine = "true"

Add the following code to res/layout/activity_main.xml.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.root.scrolling.MainActivity">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            >



                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Hello World!" />

                <TextView
                    android:id="@+id/txtScroll"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:textSize="30dp"
                    android:background="#D0D0D0"
                    android:text="http://yii2ideas.blogspot.com/"

                    android:focusable="true"
                    android:focusableInTouchMode="true"
                    android:singleLine="true"
                    android:scrollHorizontally="true"
                    android:ellipsize="marquee"
                    android:marqueeRepeatLimit="marquee_forever"
                    />
             
        </LinearLayout>
     
</RelativeLayout>




Useful Links
Android Drop Down List Tutorial

Android date picker dialog