PHP数组列的行索引检索

Question

我们可以在2维php数组中获取列的行索引吗？我需要像在PHP数组中一样获取行的索引。

Answer 1

<?php
//Demo Array
$ARRAY = arrauy(
    "0" => array(
        "col1"=>"",
        "col2"=>"",
        "col3"=>"",
        "col4"=>"",
        "col5"=>"",
    ),
    "1" => array(
        "col1"=>"",
        "col2"=>"",
        "col3"=>"",
        "col4"=>"",
        "col5"=>"",
    ),
    "2" => array(
        "col1"=>"",
        "col2"=>"",
        "col3"=>"",
        "col4"=>"",
        "col5"=>"",
    ),
    "3" => array(
        "col1"=>"",
        "col2"=>"",
        "col3"=>"",
        "col4"=>"",
        "col5"=>"",
    ),
    "4" => array(
        "col1"=>"",
        "col2"=>"",
        "col3"=>"",
        "col4"=>"",
        "col5"=>"",
    ),
);
foreach($ARRAY as $rowkey=>$rowval)
{
    foreach($rowval as $colkey=>$colval)
    {
        echo($rowkey);
    }
}
?>