List of all PHP Keywords with the Outputs

<?php
abstract class Code {
abstract protected function Methodlive();
public function show() {
echo '<br>'.$this->Methodlive();}}
class CodeOne extends Code {
protected function Methodlive() {
echo '<br>'.'This is abstract keyword';}}
$objOne = new CodeOne;
$objOne->show();
?>,

<?php
$a = 20;
$b = 21;
if($a ==20  and  $b == 21) {
echo 'Output  :  True';}
else
{
  echo 'Output  : False';}
?>

<?php
$directions  = array("a" => "sun", "b" => "set", "c" => "in", "d" => "west");
print_r($directions);
?>

<?php
$directions  = array("a" => "east", "b" => "west", "c" => "north", "d" => "south");
foreach($directions as $key=>$value) {
echo '<br>'. $key. '=>'.$value;
}?>

<?php
$arr = array("Teacher", "Student", "Table", "Chair");
foreach($arr as $key=>$value) {
if($value  == 'Table') {
break ; }
echo '<br>'.$value;}
?>

<?php
$i = 0;
while($i<4) {
switch($i) {
case 0:
echo "<br>"."Zero";
break;
case 1:
echo "<br>"."One";
break;
case 2:
echo "<br>"."Two";
break;
default:
echo "<br>"."Default";}
$i++;}
?>

<?php
function myFunction(){
try {
$num1 = 20;
$num2 = 5;
if($num1 / $num2) {
throw new Exception('Divide By Five');}
} catch (Exception $e) {
die($e->getMessage());
}}
myFunction();
?>

<?php
class Class1{
var $str = 'List of all PHP Keywords';
public function displayMethod() {
echo $this->str;
}}
$obj = new Class1;
$obj->displayMethod();
?>

<?php
$fruits = 'Orange';
switch ($fruits) {
case 'Grapes':
echo "Grapes";
break;
case 'Guava':
echo "Guava";
break;
case 'Strawberry':
echo "Strawberry";
break;
default:
echo "Fruit is not Grapes, Guava or Strawberry ";
break;
}
?>

<?php
$a = 5;
do { if($a > 5) {
echo 'a is greater than 5';}
else{ echo 'a is less than 5';}}
while ($a < 5);
?>

<?php
$conn = mysqli_connect('localhost','root','','dbname');
if(!$conn) {
die("Unable to connect ");}
?>

<?php
echo 'This is softcodeon! ';
$name = 'Prince Rauf';
echo 'My name is '. $name;
?>

<?php
$a = 5;
if ($a > 10) {
echo "a is greater than 20";}
else {
echo "a is not greater than 20";}
?>

<?php
$a = 10;
if ($a > 20) {
echo "a is greater than 20";
} elseif ($a == 20) {
echo "a is equal to 20";
} else {
echo "a is smaller than 20";
}
?>

<?php
$str = 'List of all PHP Keywords';
if(empty($str)) {
echo 'This is empty';} 
else {
echo $str;}
?>

<?php
for($i=0;$i<3;$i++) :
echo "<br/>".$i;
endfor;
?>

<?php
if ($a > 10):
echo "a is greater than 20";
elseif ($a >20) :
echo "a is equal to 20";
else:
echo "a is not equal to 20";
endif;
?>

<?php
$arr = array(10,9,8,7,6,5,4,3,2,1);
foreach ($arr as $key=>$value):
echo '<br>'.$value;
endforeach;
?>

<?php
$fruits = 'Orange';
switch ($fruits):
case 'Grapes':
echo "Grapes";
break;
case 'Strawberry':
echo "Strawberry";
break;
case 'Guava':
echo "Guava";
break;
default:
echo "Fruit is not Grapes, Strawberry or Guava ";
break;
endswitch;
?>

<?php
$i = 1;
while($i<4):
echo "<br>".$i;
$i++;
endwhile;
?>

<?php
$string1 = 'List of all PHP Keywords';
$string2 = 'Prince Rauf';
$string = 'Softcodeon $string1 .  My name is $string2';
echo "<br>".$string;
eval("\$string = \"$string\";");
echo "<br>".$string;
?>

<?php
class MyClass {
var $string = 'Learn PHP';
final public function display() {
echo $this->string;
}}
class ExtendClass extends MyClass {
public function display() {
echo 'Softcodeon!';
}}
$obj1 = new ExtendClass;
$obj1->display();
?>

<?php
try {
$num1 = 20;
$num2 = 5;
if($num1 / $num2) {
throw new Exception('Divide By Five');}
} catch (Exception $e) {
echo '<br>'.$e->getMessage();}
?>

<?php
for($i=0; $i<10; $i++) {
if($i == 5) {
break;}
echo '<br>'.$i;}
?>

<?php
$array = array(10,20,30,40,50);
foreach($array as $value) {
echo '<br>'.$value/10;}
?>

<?php
function calSum($a , $b) {
$c = $a + $b;
return $c;
}
$result = calSum(20 , 30);
echo '<br> The sum  :  '.$result;
?>

<?php
$a = 5;
$b = 10;
function fun() {
global $a;
global $b;
$sum = $a + $b;
return $sum;
}
$f = fun();
echo 'The sum is '.$f;
?>

<?php
$sum = 20;
if($sum == 20) {
echo 'Sum is 20';
} else {
echo 'Sum is not 20';
}
?>

<?php
interface One
{
public function first();
}
class MyClass implements One {
public function first() {
echo 'List of all PHP Keywords, This is the First function';
}
}
$obj = new MyClass;
echo $obj->first();
?>

<?php
$a = 'Earth';
$b = 'Sky';
?>

<?php
include 'file.php';
echo $a . ' is '. $b. ' in Shape';
?>

<?php
class MyClass
{
public function MyClassMethod(){
echo 'List of all PHP Keywords!';
}}
class ExtendedClass extends MyClass
{
public function ExtendedClassMethod(){
echo 'Have a Nice Day!';
}}
$obj1 = new ExtendedClass;
var_dump($obj1 instanceOf ExtendedClass);
?>

<?php
$stringOne = '';
var_dump(isset($stringOne));
$stringTwo = NULL;
var_dump(isset($stringTwo));
?>

<?php
$names = array('Rauf','Ali','Ahmad');
list($person1, $person2, $person3) = $names;
echo "$person1, $person2 and $person3 are friends";
?>

<?php
class MyClass
{
public function score($name, $subject, $marks) {
echo "$name scored $marks marks in $subject";
}}
$obj = new MyClass;
$obj->score('Rauf','Computer',90);
?>

<?php
$str = "List of PHP Keyword";
print($str);
$stringOne = "Rauf, ";
$stringTwo = "How are you?";
print "<br>"."Hello $stringOne $stringTwo";
?>

<?php
class MyClass
{
private $str = 'Private';
function PrivateMethod()
{
echo 'In '. $this->str. ' Method';
}}
$obj = new MyClass();
$obj->PrivateMethod(); 
?>

<?php
class MyClass
{
public $str = 'Public';
function PublicMethod()
{
echo 'In '. $this->str. ' Method';
}}
$obj = new MyClass();
$obj->PublicMethod(); 
?>

<?php
class MyClass
{
protected $str = 'Protected';
function ProtectedMethod()
{
echo 'In '. $this->str. ' Method';
}}
$obj = new MyClass();
$obj->ProtectedMethod(); 
?>

<?php
function sum() {
$a = 20;
$b = 30;
$c = $a +$b;
return $c;
}
$result = sum();
echo 'Sum : ' . $result;
?>

<?php
class MyClass
{
var $str = 'PHP Programming';
public function displayMsg() {
echo $this->str;
}
}
$obj = new MyClass;
$obj->displayMsg();
?>

<?php
$i = 0;
while ($i<5) {
echo '<br>'. $i;
$i++;
}
?>