gistfile1.txt

Interactive shell

php > $x=array(1=>1,2=>1,3.3=>1);
php > $x
php > ;
php > print_r($x);
Array
(
    [1] => 1
    [2] => 1
    [3] => 1
)
php > $x[3.3]
php > ;
php > print_r($x[3.3]);
1
php > print_r($x[3.3asdfadfasdfa]);

Parse error: parse error, expecting `']'' in php shell code on line 1
php > print_r($x[3.31234525234]);
1
php > print_r($x[3]);
1
php > print_r($x["3"]);
1
php > print_r($x["3 ugly men"]);
php > print_r($x["qweic 3"]);
php > print_r($x[3 + 0.1]);
1