帝国CMS常用的PHP判断语法集合

<?php
if($navinfor[befrom]){
?>
<p>来源：[!–befrom–]</p>
<?php
}?>
 

<?php
if($navinfor[befrom]){
echo"来源：".$navinfor[befrom];
}?>
 

<?phpif($navinfor[befrom]){
echo"来源：".ReplaceBefrom($navinfor[befrom]);
}
?>

 

<?php
if($navinfor['befrom']){
?>
<p>[!–befrom–]</p>
<?php
}else{
?>
余斗余斗
<?php
}?>
 

<?php if(!empty($classr[classimg])){
echo '<img src="'.$classr[classimg].'">';
}else{
echo '';
  }
?>
 

<?=ReplaceBefrom($navinfor[befrom]?$navinfor[befrom]:'余斗余斗')?>
<?=$navinfor[befrom]?'来源：'.$navinfor[befrom].'':''?>
<?=$navinfor[befrom]?"来源：$navinfor[befrom]&nbsp;&nbsp;":""?> 注释：&nbsp; 为空格
<?=$navinfor[befrom]?$navinfor[befrom]:"暂无简介 "?>
<? echo $navinfor['befrom']?'<span>来源：'.$navinfor[befrom].'</span>':'暂无来源';?>
<?=$navinfor[writer]?:"暂"?>
 

<?php
switch($class_r[$GLOBALS[navclassid]]['bname']){
case "国内":
$sid = 34;
break;
case "国际":
$sid = 35;
break;
default:
$sid = 34;
}
?>
<?=$sid?>

 

<?php
$c1_r=array(35,34);
$c2_r=array(36,37);
if(in_array($GLOBALS[navclassid],$c1_r)){
$cid1='广告1';
}elseif(in_array($GLOBALS[navclassid],$c2_r)){
$cid1='广告2';
}else{
$cid1='其他广告';
}?>
<?=$cid1?>