how to concatenate variables in php code example

Example 1: php concat

$a = "hello";
$b = "world";
$c = $a . " " . $b;

echo $c; // hello world

Example 2: php append string

<?php
$a = "Hello ";
$b = $a . "World!"; // now $b contains "Hello World!"

$a = "Hello ";
$a .= "World!";     // now $a contains "Hello World!"
?>

Example 3: php concatenate and add

this is inside for or foreach loop

# For concatenate use           .=
 $var .= 'string';

 # For adding the VALUES use    +=
 $var += 1;

Example 4: php concat variable and string

<?php
  $name = "Paul";	
  $age = 26;

  echo "My name is {$name}, I'm {$age} years old ";

Example 5: concatenate string php

<?php 

// First String 
$a = 'Hello'; 

// Second String 
$b = 'World!'; 

// Concatenation Of String 
$c = $a.$b; 

// print Concatenate String 
echo " $c \n"; 
?>