php整数不响应条件 答复
因此,它在执行任何IF()条件之前都会进行一系列while循环。想法 问题php整数不响应条件 答复,php,if-statement,integer,conditional,Php,If Statement,Integer,Conditional,因此,它在执行任何IF()条件之前都会进行一系列while循环。想法 问题 $i=0; $2=3; $htmlWeather=“”; ... 而($parser->parse()&&($weatherIterations>0)){ $weather迭代--; if($parser->iNodeType==NODE|TYPE|TEXT |$parser->iNodeType==NODE|TYPE|COMMENT){ if(trim($parser->iNodeValue)!=''{ //嘿,别嘲笑
$i=0;
$2=3;
$htmlWeather=“”;
...
而($parser->parse()&&($weatherIterations>0)){
$weather迭代--;
if($parser->iNodeType==NODE|TYPE|TEXT |$parser->iNodeType==NODE|TYPE|COMMENT){
if(trim($parser->iNodeValue)!=''{
//嘿,别嘲笑那个菜鸟
交换机(一美元){
案例0:
$htmlWeather.=“title=”..$parser->iNodeValue。”
”;
打破
案例1:
$htmlWeather.=“Hi=”..$parser->iNodeValue。”
”;
打破
案例2:
$htmlWeather.=“Temp=”..$parser->iNodeValue。“
”;
打破
案例3:
$htmlWeather.=“Lo=”..$parser->iNodeValue。”
”;
打破
案例4:
$htmlWeather.=“Temp=”..$parser->iNodeValue。“
”;
打破
案例5:
$htmlWeather.=“Desc=”..$parser->iNodeValue.”;
打破
}//开关
$iWorks对我来说(整数比较)。你到底是在while循环中输入的吗?也许parser->parse()返回false?@Darhazer,它进入while循环。在上面的示例代码中,$weatherIterations将值更改为2,1,0,并退出while()循环,而不执行任何if()条件(我觉得很困惑).检查$parser->iNodeType和$parser->iNodeValue@Darhazer如果我从while循环中删除“&&($weatherIterations>0)”,它会正常工作。只是我只需要运行3次,并且只得到3个最新的结果。
/* Thanks everyone :)
my guess: the while loop is running through every line of HTML code that
has a value (class="" type="" id="" etc. – many of them are blank), but I only
need it to count "1" if it has run through the switch up to case 5, at which
point it grabs the last bit of the weather for a particular day. On case 5 is
when I need to trigger $weatherIterations-- */
$i = 0;
$weatherIterations = 3;
$htmlWeather = "";
if (empty($htmlText)) {
$htmlWeather = "<p>Weather information is not currently available.<p>";
} else {
$parser = new HtmlParser($htmlText);
while ( $parser->parse() && ($weatherIterations > 0) ) {
if( trim($parser->iNodeValue) != '' ) {
// hey, no laughing at the newbie
switch ($i) {
case 0:
$htmlWeather .= "<div id='weather'><span class='weather-title'>".$parser->iNodeValue."</span><br />";
break;
case 1:
$htmlWeather .= "<span class='weather-hi'>".$parser->iNodeValue."<br />";
break;
case 2:
$htmlWeather .= $parser->iNodeValue."</span><br />";
break;
case 3:
$htmlWeather .= "<span class='weather-lo'>".$parser->iNodeValue."<br />";
break;
case 4:
$htmlWeather .= $parser->iNodeValue."</span><br />";
break;
case 5:
$htmlWeather .= "<span class='weather-desc'>".$parser->iNodeValue."</span></div>";
$weatherIterations--;
break;
default:
$htmlWeather = "Oops! Houston, we have a problem.";
print $htmlWeather;
exit;
} // switch
$i<5 ? $i++: $i=0;
} // if trim
} // while
print $htmlWeather;
} // if empty html
3
2
1
0
-1
...
-150
title= Wednesday
Hi= Hi
Temp= 29 / 85
Lo= Lo
Temp= 24 / 76
Desc= Sunny Periods, showers
title= Thursday
...
Desc= Sunny Periods
$i = 0;
$weatherIterations = 3;
$htmlWeather = "";
...
while ( $parser->parse() && ($weatherIterations > 0) ) {
$weatherIterations--;
if ($parser->iNodeType == NODE_TYPE_TEXT || $parser->iNodeType == NODE_TYPE_COMMENT) {
if( trim($parser->iNodeValue) != '' ) {
// hey, no laughing at the newbie
switch ($i) {
case 0:
$htmlWeather .= "<div id='weather'><span class='weather-title'>title= ".$parser->iNodeValue."</span><br>";
break;
case 1:
$htmlWeather .= "<span class='weather-hi'>Hi= ".$parser->iNodeValue."<br>";
break;
case 2:
$htmlWeather .= "Temp= ".$parser->iNodeValue."</span><br>";
break;
case 3:
$htmlWeather .= "<span class='weather-lo'>Lo= ".$parser->iNodeValue."<br>";
break;
case 4:
$htmlWeather .= "Temp= ".$parser->iNodeValue."</span><br>";
break;
case 5:
$htmlWeather .= "<span class='weather-desc'>Desc= ".$parser->iNodeValue."</span></div>";
break;
} // switch
$i<5 ? $i++: $i=0;
} // if trim
} // if parser
} // while
print $htmlWeather;