How to print data : PHP

You can use 'echo' to print string, variables, etc. in php. 

Syntax:

        echo "print it...";                       // Output------------->  print it...
        echo '<br/>';                           // prints a new line/enter

        $var_1 = 10;
        $var_2 = 3.14;
        $var_3 = "myString";
        echo $var_1;                           //  Output (number)------->  10
        echo $var_3;                           //  Output (string)------->  myString
        echo "$var_1 + $var_2";         //  Output (sum number)-------> 13.14
       
       echo '$var_1 + $var_2';          //  Output (string)-------> $var_1 + $var_2
       
       echo "$var_1 + $var_2 = ".($var_1 + $var_2);  
       // Output ---------> $var_1 + $var_2 = 13.14


      Note: dot(.) character is used to concant/join strings in php.