在PHP中访问2D数组[关闭]

Question

I have created a 2D Array and trying to access each elements but i am receiving wrong value of each array .I can see only Today as the value

<?php

$blog = array ( 
        0 => array('by' => "Nilay Mehta", 'on' => "Today", 'id' => "Today", 'post' => "Today"),
        1 => array('by' => "Nilay Mehta", 'on' => "Today", 'id' => "Today", 'post' => "Today"),
        2 => array('by' => "Nilay Mehta", 'on' => "Today", 'id' => "Today", 'post' => "Today"),
        3 => array('by' => "Nilay Mehta", 'on' => "Today", 'id' => "Today", 'post' => "Today"),
);

foreach($blog as $blog)
{
    echo "<a href=\"#\">".$blog['by']."</a>";
    echo "<div class=\"blogtime\"> - ".$blog['on']."</div>";
    echo "<div class=\"blogtime\">Blog Post ID - ".$blog['id'];
    echo $blog['post'];
}
?>

Answer 1

this as $blog will overwrite the original $blog variable and for the first time you can access the value but then it will not work as expected. change the second $blog to anything else as I did

foreach($blog as $b)
{
    echo "<a href=\"#\">".$b['by']."</a>";
    echo "<div class=\"blogtime\"> - ".$b['on']."</div>";
    echo "<div class=\"blogtime\">Blog Post ID - ".$b['id'];
    echo $b['post'];
}

in your case the $blog will become from

array ( 
        0 => array('by' => "Nilay Mehta", 'on' => "Today", 'id' => "Today", 'post' => "Today"),
        1 => array('by' => "Nilay Mehta", 'on' => "Today", 'id' => "Today", 'post' => "Today"),
        2 => array('by' => "Nilay Mehta", 'on' => "Today", 'id' => "Today", 'post' => "Today"),
        3 => array('by' => "Nilay Mehta", 'on' => "Today", 'id' => "Today", 'post' => "Today"),
);

to

array('by' => "Nilay Mehta", 'on' => "Today", 'id' => "Today", 'post' => "Today");