Question

我正在使用CodeIgniter框架。我创建了一个名为common_funtions的库。这个库使我能够在不同的控制器中调用一个函数。一个函数特别需要一个参数，但是当我调用函数时我得到三个错误：

A PHP Error was encountered
Severity: Warning
Message: Missing argument 1 for Common_functions::time_ago(), called in \...\get_comments.php on line 11 and defined
Filename: libraries/Common_functions.php
Line Number: 20

A PHP Error was encountered
Severity: Notice
Message: Undefined variable: time
Filename: libraries/Common_functions.php
Line Number: 26

A PHP Error was encountered
Severity: Notice
Message: Undefined variable: time
Filename: libraries/Common_functions.php
Line Number: 39

这是我的代码：在库中：common_functions.php

// The following function calculates ‘how long ago’
function time_ago($time)
{       
    $periods = array('second', 'minute', 'hour', 'day');
    $lengths = array('60', '60', '24', '7');
    $tense = 'ago';
    $now = time();
    $time_diff = $now - $time;
    for ($j = 0; $time_diff >= $lengths[$j] && $j < count($lengths)-1; $j++)
    {
        $time_diff /= $lengths[$j];
    }
    $time_diff = round($time_diff);
    if ($time_diff != 1)
    {
        $periods[$j].='s';
    }
    if ($time_diff > 7 && $periods[$j] == 'days')
    {
        $time_ago = date("l dS F, Y", $time);
    } 
    else 
    {
        $time_ago = $time_diff." ".$periods[$j]." ago";
    }
    return $time_ago;
}

在我的控制器中：

$query = $this->db->query(“
    SELECT * 
    FROM post_comments 
    WHERE p_id = ‘$id’ 
    ORDER BY date ASC”);
$comments = $query->result_array();
foreach ($comments as $comment)
{
    $comment['date'] = $this->common_functions->time_ago($comment['date']);
}

我的代码有问题吗？或者也许这是我框架中的错误？这不是我第一次遇到这种情况。

Answer 1

您是否使用$this->load->library('common_functions');加载了库？

在这种情况下，您似乎更适合使用模型而不是库，请参阅：http://codeigniter.com/user_guide/general/models.html

将参数传递给codeigniter中的函数时出现问题

1 个答案: