if(0) {
echo "true";
} else {
echo "false";
}
?>
output result :false
if(1) {
echo "true";
} else {
echo "false";
}
?>
output result : True
//$a is 6 six, 7 seven, 8 eight, null none
//$a=7; Result: seven
//$ a=5; Result: None
switch($a) {
case 6:
echo "6";
break; //Jump out of the current switch
case 7:
echo "seven";
break;
case 8:
echo "eight";
break;
default:
echo "None";
}
?>
When nothing is entered, the result is: NoneCopyright Statement: This article is an original article by the blogger and may not be reproduced without the blogger's permission.
The above introduces the process control statement if/switch, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.