Question

How to dump information about a variable in PHP

Answer 1

$a = array(1, 2, 3, 4, array("x", "y", "hi"));
echo "<pre>";
var_dump($a);
echo "</pre>";
 

/*
run: 

array(5) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
  [3]=>
  int(4)
  [4]=>
  array(3) {
    [0]=>
    string(1) "x"
    [1]=>
    string(1) "y"
    [2]=>
    string(2) "hi"
  }
}

*/

 

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Answer 2

// void var_dump( mixed $expression [, mixed $... ])

$n = 100;
$f = 3.14;
$l = 100000000000067888888888888888888888889;
$t = true;

echo "<pre>";
var_dump($n, $f, $l, $d, $t);
echo "</pre>";
 

/*
run: 

int(100)
float(3.14)
float(1.0000000000007E+38)
bool(true)

*/

 

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