php函数

<?php 
  $arr\[0\]\[0\]=10;
  $arr\[0\]\[1\]=22; 
  $arr\[1\]\[0\]=1E+05; 
  $arr\[1\]\[1\]="这不是来了"; 
  for($i=0;$i<count($arr);$i++){ 
    for($k=0;$k<count($arr\[$i\]);$k++){
      $arr1=each($arr\[$i\]); 
      echo "$arr1\[value\]<br />"; } }
      //php向函数传递参数 
      function totalneedtopay($days,$roomprice){
      $totalcost=$days*$roomprice; 
      echo "需要支付的总价：$totalcost"."元<br />";
    } 
    $rentdays=3; 
    $roomprice=168; 
    totalneedtopay($rentdays, $roomprice); 
    totalneedtopay(5,198); //php向函数中传递参数引用 
    $fee=300; $serviceprice=50; function totalfee(&$fee,$serviceprice){
    $fee=$fee+$serviceprice; echo "需要支付的总价：$fee"."元<br />"; 
  } 
  totalfee($fee, $serviceprice); 
  totalfee($fee, $serviceprice); //php从函数中返回值
  function totalneedtopay1($days1, $roomprice1){ 
  	return $days1*$roomprice1; 
  }
  $rentdays1=3; $roomprice1=168; 
  echo totalneedtopay1($rentdays1, $roomprice1); 
?>