Dedecms using the PHP statement guide _php instance

In Dedecms, the use of the PHP statement itself is the {dede:php} tag can be used, the simplest input such as

Copy the Code code as follows:
{dede:php}

$numA = 1;

$numB = 2;

echo $numA + $numB;

{/dede:php}

From the above statement can be seen dede:php tag can literally make the same use in PHP, the above statement in PHP written as follows

Copy the Code code as follows:
<?
$numA = 1;
$numB = 2;
echo $numA + $numB;
?>

Does it look like it, and then look at another if else condition to judge

Copy the Code code as follows:
[Field:global runphp= ' yes ' name=autoindex]
$a = "";
$b = "";
$c = "< (www.php.net) SPAN class= ' num ' >";
if (@me > 3) @me = $c. @me. $b;
else @me = $a. @me. $b;
[/field:global]

This is written in PHP, I will not write, the following we want to see Dede PHP tags combined with SQL tags.

Output single content with SQL query

Copy the Code code as follows:
{dede:php}
$row = $dsql->getone (' Select Id,typename from Dede_arctype where id=2 ');
Print_r ($row);
{/dede:php}

The content of this output is

Copy the Code code as follows:
Array
(
[id] = 2
[TypeName] = Q
)

is not very simple ah, have to learn a friend can refer to this article ha.

