PHP Common utility Function _php Tutorial

1. For foreach in fact the $key=> $value and $i = $g is the same effect, and is not limited to key value

echo "
\ n ";

$arr = Array ("One", "one", "three");

foreach ($arr as $i = = $g) {

echo "Key: $i; Value: $g
\ n ";

}

?>

2. Array_fill () function

Fills an array with the given value

$a = Array_fill (5, 6, ' banana ');

Print_r ($a);

?>

Output:

Array ([5] = banana [6] = banana [7] = banana [8] = banana [9] = = Banana [ten] = banana)

3. Print Array (PHP mode and JSON mode)

$data = Array (

' FirstName ' = ' Tom ',

' LastName ' = ' Smith ',

' Age ' =>40

);

Print_r ($data);

echo Json_encode ($data);

Output:

Array ([FirstName] = Tom [LastName] = Smith [age] + 40)

{"FirstName": "Tom", "LastName": "Smith", "Age": 40}

4. Print_r ($data, true); So you can write the array into the log www.2cto.com

$a = Array ("A", "B", "C");
$c = Print_r ($a, true);

$logfile = "T.txt";

Error_log ("{$c}\r\n\r\n", 3, $logfile);

Excerpt from Hata Lishin's Crazy coding life

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