PHP中的函數

我正在與php函數作鬥爭。PHP中的函數

我想創建一個接受5個參數的函數。用戶需要選擇他們選擇的活動，他們選擇的活動的消息應該回顯給用戶。

我在函數中使用了一個數組和一個foreach語句，但它不起作用。

請幫

<?php 
// Declare the function and variables 

error_reporting (0); 
$msg = ""; 
$activity = ""; 

function activites ($paintballing , $ice_skating, $horse_riding, $para_gliding, $water_rafting){ 

    // Make the activity array 

    $activites = array (1=> 'Paintballing', 'Ice_skating', 'Horse_riding', 'para_gliding', 'water_rafting'); 

    // make the activity pull down menu 
    echo '<select name ="activity">'; 

    // use a foreach loop to loop through the activity 

    foreach ($activites as $key =>$value) { 
    echo "<option value \"key\"$key\">$value</option>\n"; 

} 

} 

if ($activity == ""){ 
    $msg = "<font color = 'red'> Please select an activity from the drop down menu</font>"; 

} 

?> 



<html> 
<head> 
<title>Function </title> 
</head> 
<body> 
<center> <a href="index.php">Home </a> | <a href ="calc.php">Calc</a> | <a href="string.php">String</a> | <a href ="array.php"> Array </a> | <a href = "function.php">Function </a></center> 
    </center> 

<form name = 'function' method = "POST" action = 'function.php' > 

<p>Select one of the activity you would like to do today:</p> 

    <select name="Activity" size="5"> 
    <option selected value = ""> 
    <option> Paintballing </option> 
    <option> Ice-skating </option> 
    <option> Horse-riding </option> 
    <option> Para-gliding </option> 
    <option> Water-rafting </option> 
    </select> 
    </form> 
    <input type = "submit" name = "submit" value = "submit" /> 
    </option> 
    <?php echo $msg;?> 
    <p align ="center"><a href ="function.txt" Onclick ="window.open ('function.txt', 'function', resizable =no, height=500, width=500, scrollercars=yes'); retrun false;">Function.txt</a></p>

來源

2013-03-22 Basi Manele

什麼是你的錯誤消息的功能？ – 2013-03-22 18:02:04

'$ activites = array（1 => $ paintballing，$ ice_skating，$ horse_riding'，$ para_gliding'，$ water_rafting'）;' – 2013-03-22 18:03:09

你真的在某處調用這個函數嗎？ – ioums 2013-03-22 18:04:20

嘗試調用

if ($_POST['submit']) { 
    echo activities($_POST['Activity']); 
}

你的函數修改

function activities($activity) { 
    $activities = array(
      'Paintballing', 
      'Ice_skating', 
      'Horse_riding', 
      'para_gliding', 
      'water_rafting' 
    ); 
    $activity = trim($activity); 
    if (! in_array($activity, $activities)) 
     return false; 

    return sprintf("You have selected : %s", $activity); 
}

來源

2013-03-22 18:05:49 Baba

另外，'activites'是'activities '拼寫錯誤，你可能想要解決這個問題，而你的代碼很小。 – 2013-03-22 20:15:12

不是你，OP ... :) – 2013-03-22 20:37:12

@PedroCordeiro ..是的，我知道......我應該自己糾正它...... :) – Baba 2013-03-22 20:51:19

PHP中的函數

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