Question

How to set variable type in PHP

Answer 1

$s = "100 A Grade"; 
 
echo $s . " : " . gettype($s) . "\n";
settype($s, "integer");
echo $s . " : " . gettype($s) . "\n";




/*
run:

100 A Grade : string
100 : integer

*/

 

70+ SQL courses for beginners and professionals

Answer 2

$s = true; 
 
echo $s . " : " . gettype($s) . "\n";
settype($s, "integer");
echo $s . " : " . gettype($s) . "\n";




/*
run:

1 : boolean
1 : integer

*/

 

70+ SQL courses for beginners and professionals

Answer 3

$s = "php";
 
echo $s . " : " . gettype($s) . "\n";
settype($s, "integer");
echo $s . " : " . gettype($s) . "\n";




/*
run:

php : string
0 : integer

*/

 

70+ SQL courses for beginners and professionals

Answer 4

$a = 14;
 
echo $a . " : " . gettype($a) . "\n";
settype($a, "string");
echo $a . " " . gettype($a) . "\n\n";
 
 
$a = "489";
 
echo $a . " : " . gettype($a) . "\n";
settype($a, "integer");
echo $a . " : " . gettype($a) . "\n";
 
 
 
 
 
/*
run:
 
14 : integer
14 string

489 : string
489 : integer

*/

 

70+ SQL courses for beginners and professionals