InbuiltNumericAndArrayFunctions.php

<?php
//size of an array
$sports=array("cricket","football","volleyball","hockey");
echo sizeof($sports);
echo "<br>";

list($a,$b,$c,$d)=$sports;
echo "My favourite sports are: $a,$b,$c, and $d";
echo "<br>";

//sum of the integer in an array
$num=array(200,300,100,400);
echo array_sum($num);
echo "<br><br>";

//to return the highest value from the array
echo max(20,23,24,25);
echo "<br>";

//to return the smallest value from the array
echo min(23,22,25,26);
echo "<br>";
echo min(array(4,5,3,6));
echo "<br>";

//to return the absolute positive value
echo abs(-9.8);
echo "<br>";

//to convert to binary from decimal
echo bindec(10011);
echo "<br>";

//to convert to decimal to binary
echo decbin(24);
echo "<br>";

//to round up a number to the nearest integer
echo ceil(0.34);
echo "<br>";
echo ceil(-9.8);
echo "<br>";

//to round down a number to the nearest integer
echo floor(0.34);
echo "<br>";
echo floor(-6.7);
echo "<br>";

//to return the value of PI
echo pi();
echo "<br>";

//to return the power value
echo pow(3, 4); //it gives the value to 3^4
echo "<br>";

//to show the current date
echo date("m/d/y");
echo "<br>";
echo date("F j,Y");
echo "<br>";

//to show the standard time
echo "the time is".date("h:i:s A");
echo "<br>";

//to show standard date in word and time 
echo date("Y-M-D h:i:s");
echo "<br>";

//to show standard date and time in number
echo date("y-m-d h:i:s");
echo "<br>";

//to show the default time zone
date_default_timezone_set("Asia/kathmandu");
echo date("h:i:s A");