PHP Operators and Expressions What will be the output of the following PHP code ?< ? php < ? php echo "Hello world"; ? > ? > Hello world Nothing Error Hello Hello world Nothing Error Hello ANSWER DOWNLOAD EXAMIANS APP
PHP Operators and Expressions What will be the output of the following PHP code ?$x = 4;$y = 3;$z = 1;echo "$x = $x + $y + $z"; 8 8 = 4 + 3 +1 4 = 4 + 3 + 1 Error 8 8 = 4 + 3 +1 4 = 4 + 3 + 1 Error ANSWER DOWNLOAD EXAMIANS APP
PHP Operators and Expressions What will be the output of the following PHP code ?$y = 2;$w = 4;$y *= $w /= $y;echo $y, $w; 82 42 44 80.5 82 42 44 80.5 ANSWER DOWNLOAD EXAMIANS APP
PHP Operators and Expressions In order to find if a variable holds an actual number or a string containing characters that can be translated into a number you can use: is_num() is_number() is_numeric() if_numeric is_num() is_number() is_numeric() if_numeric ANSWER DOWNLOAD EXAMIANS APP
PHP Operators and Expressions What will be the output of the following PHP code ?static $x = 0;function fun() {echo $x;$x++;}fun();fun();fun(); 012 123 Nothing Error 012 123 Nothing Error ANSWER DOWNLOAD EXAMIANS APP