php在function外面输出
<?php secondsToHour(6000);function secondsToHour($seconds){if(intval($seconds) < 60)$tt ="00:00:".sprintf("%02d",intval($seconds%60));if(intval($seconds) >=60){$h =sprintf("%02d",intval($seconds/60));$s =sprintf("%02d",intval($seconds%60));if($s == 60){$s = sprintf("%02d",0);++$h;}$t = "00";if($h == 60){$h = sprintf("%02d",0);++$t;}if($t){$t = sprintf("%02d",$t);}$tt= $h.":".$s;}if(intval($seconds)>=60*60){$t= sprintf("%02d",intval($seconds/3600));$h =sprintf("%02d",intval($seconds/60)-$t*60);$s =sprintf("%02d",intval($seconds%60));if($s == 60){$s = sprintf("%02d",0);++$h;}if($h == 60){$h = sprintf("%02d",0);++$t;}if($t){$t = sprintf("%02d",$t);}$tt= $t.":".$h.":".$s;}echo $seconds>0?$tt:'00:00:00';}?>
echo $seconds>0?$tt:'00:00:00';不在function里面输出
在外面function外面，让其等于$LabelArray['副标']
很不习惯php中的变量作用域，php中函数变量和全局是完全隔绝的，也就是无法相互访问。比如下面这样：复制代码代码如下:$test = 123; abc(); //这里什么都不输出，因为访问不到$test变量function abc(){ echo($test);}$test = 123;abc(); //这里什么都不输出，因为访问不到$test变量function abc(){ echo($test);}如果，你想在函数内部访问外部变量，你需要这样：复制代码代码如下:$test = 123; abc(); //输出123function abc(){ global $test; echo($test);}$test = 123;abc(); //输出123function abc(){ global $test; echo($test);}也就是说，你使用全局变量就可以在函数内调用外部定义过的变量
<?php $x=fgets(STDIN)+0; $result=array(); chk($x); echo count($result)." "; foreach ($result as $arr) echo "$x=".implode($arr,'+')." "; function ss($x){ if ($x==2) return true; $y=ceil(sqrt($x)); for ($i=2;$i<=$y;$i++) if ($x%$i==0) return false; return true;}function chk($x){ global $result; $y=ceil($x/3); for ($i=2;$i<=$y;$i++) if (ss($i)) for ($j=$i;$j<=$y;$j++) if (ss($j)){ $k=$x-$i-$j; if (ss($k)) $result[]=array($i,$j,$k); }}?>下一篇：求推荐计算机入门书籍