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Home Backend Development PHP Tutorial 这个函数怎么写??

这个函数怎么写??

Jun 23, 2016 pm 02:39 PM

本帖最后由 u013177281 于 2013-12-16 20:03:59 编辑

<?php$guanggaotutiao1=$_MODULE["guanggaotiao1"];if($guanggaotutiao1){	$bjjs='background:url('.$guanggaotutiao1.')';		}else{	$bjjs='';	}?>
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输入函数参数guanggaotiao1 出现上面的效果 的函数

$guanggaotutiao1是全局哦

这个函数怎么写??


回复讨论(解决方案)

$guanggaotutiao1=$_MODULE["guanggaotiao1"];function guangGao($url){	if($guanggaotutiao1){    	$bjjs='background:url('.$guanggaotutiao1.')';      	}else{    	$bjjs='';	}	return $bjjs;}guanGao($guanggaotutiao1);
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$guanggaotutiao1=$_MODULE["guanggaotiao1"];function guangGao($url){	if($guanggaotutiao1){    	$bjjs='background:url('.$guanggaotutiao1.')';      	}else{    	$bjjs='';	}	return $bjjs;}guanGao($guanggaotutiao1);
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不对啊 $guanggaotutiao1这个会变得


$guanggaotutiao1=$_MODULE["guanggaotiao1"];function guangGao($url){	if($guanggaotutiao1){    	$bjjs='background:url('.$guanggaotutiao1.')';      	}else{    	$bjjs='';	}	return $bjjs;}guanGao($guanggaotutiao1);
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不对啊 $guanggaotutiao1这个会变得
$guanggaotutiao1=$_MODULE["guanggaotiao1"];这个不就是获取变化的$guanggaotutiao1吗?
然后再调用 guangGao();这个函数呀!

<?phpfunction guangao(){    global $guanggaotutiao1;    if($guanggaotutiao1)    {	$bjjs='background:url('.$guanggaotutiao1.')';    }    else    {	$bjjs='';    }    return $bjjs;}?>
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无需函数
$bjjs = $_MODULE["guanggaotiao1"] ? 'background:url('.$_MODULE["guanggaotiao1"].')' : '';

一定要写成函数的话
function background($url) {
  return $url ? "background:url($url)" : '';
}
调用
$bjjs = background($_MODULE["guanggaotiao1"]);

?帖率是0,我去

结帖率0的就没必要搭理了,最起码的尊重都不知道

警告楼上两位!不要做人身攻击
楼主的 注册日期:2013年12月16日
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