A simple example of using foreach () to traverse a two-dimensional array in PHP _php tips

First type

Want to traverse the entire two-dimensional array with foreach ():

$team = Array (' lk ', ' OK '); 
$book = Array (' Linux server Configuration and Management ', $team); 

foreach ($book as $k => $val)//for $book each $value (AS) 
echo $k. ' => '. $val '; 

The output results are:

0=>linux Server Configuration and management
1=>array

Of course, I actually want all the specifics, not the output array ...

So you should use the following procedure to add a judgment statement:

$team = Array (' lk ', ' OK '); 
$book = Array (' Linux server Configuration and Management ', $team); 

foreach ($book as $k => $val)//means $book each $value (AS) 
if (Is_array ($val)) foreach ($val as $value) echo $va Lue. '; 

The output is:

0=>linux Server Configuration and management
Lk
Ok

echo "<br>"; 
echo " 
 

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