php基础学习数组篇

1.定义默认一维数组

//$easy=array('one','two','three');

echo $easy[0];

当定义一维数组时若未直接定义键名默认为0，1...

2.定义自定义键名的一维数组

$medium =array('one'=>'1','two'=>'2','three'=>'3');

echo $medium['one'];

3.定义普通二维数组

$sample=array(

        array('1','2','3'),

        array('4','5','6')

);

echo $sample[0][0];

4.定义自定义二维数组

$medium =array(

        'one'=>array('one'=>'1','two'=>'two'),

        'two'=>array('two'=>'two','three'=>'three')

);

echo $medium ['one']['one'];