Question

我有一个选择框，时间间隔为15分钟，从9点到晚上8点，使用下面的代码生成。

function hoursRange($lower = 9, $upper = 20, $step = .25, $format = NULL) {

    if ($format === NULL) {
        $format = 'g:ia'; // 9:30pm
    }
    $times = array();
    foreach(range($lower, $upper, $step) as $increment) {
        $increment = number_format($increment, 2);
        list($hour, $minutes) = explode('.', $increment);
        $date = new DateTime($hour . ':' . $minutes * .6);
        $times[(string) $increment] = $date->format($format);
    }
    return $times;
}

$timeArr = hoursRange();
$array = array_values($timeArr);
echo "<select>";
echo "<option value=''>--Select--</option>";
foreach($array as $key=>$value){    
$disabled = '';
    echo "<option value=".$key." $disabled>".$value."</option>";
}
echo "</select>";

它给了我一个选择框，其中包含选项9：00,9：15等，如下所示

Array

    (
        [0] => 9:00am
        [1] => 9:15am
        [2] => 9:30am
        [3] => 9:45am
        [4] => 10:00am
        [5] => 10:15am
        [6] => 10:30am
        [7] => 10:45am
        [8] => 11:00am
        [9] => 11:15am
        [10] => 11:30am
        [11] => 11:45am
        [12] => 12:00pm
        [13] => 12:15pm
        [14] => 12:30pm
        [15] => 12:45pm
        [16] => 1:00pm
        [17] => 1:15pm
        [18] => 1:30pm
        [19] => 1:45pm
        [20] => 2:00pm
        [21] => 2:15pm
        [22] => 2:30pm
        [23] => 2:45pm
        [24] => 3:00pm
        [25] => 3:15pm
        [26] => 3:30pm
        [27] => 3:45pm
        [28] => 4:00pm
        [29] => 4:15pm
        [30] => 4:30pm
        [31] => 4:45pm
        [32] => 5:00pm
        [33] => 5:15pm
        [34] => 5:30pm
        [35] => 5:45pm
        [36] => 6:00pm
        [37] => 6:15pm
        [38] => 6:30pm
        [39] => 6:45pm
        [40] => 7:00pm
        [41] => 7:15pm
        [42] => 7:30pm
        [43] => 7:45pm
        [44] => 8:00pm
    )

注意：现在我的问题是我必须通过条件从选择框中删除一些选项

当前时间=上午11点=＆gt;比之前的所有选项都被禁用

当前时间= 2pm =＆gt;所有选择的选项都应该被禁用

当前时间=下午3:30或下午3:48，然后应禁用下午4点之前的所有选项。

为此，我试过这个

date_default_timezone_set('Asia/Kolkata'); 
$curretHour =  date("g");

echo "<select>";

foreach($array as $key=>$value){
    $newArr = explode(':', $value);
    if(($newArr[0] == $currentHour) || $newArr[0] <$currentHour){
        $dis = 'disabled = disabled';
    }else{
        $dis = '';
    }
    echo "<option value=".$key." $dis>".$value."</option>";
}
echo "</select>";

但它不起作用的任何人请帮助我。任何帮助将不胜感激。

Answer 1

最好和最易读的解决方案是使用DateTime类。我建议先创建当前的DateTime。在foreach循环中，您必须创建DateTime foreach时间并与当前时间进行比较。可能的解决方案：

<?php
function hoursRange($lower = 9, $upper = 20, $step = .25, $format = NULL) {

    if ($format === NULL) {
        $format = 'g:ia'; // 9:30pm
    }
    $times = array();
    foreach(range($lower, $upper, $step) as $increment) {
        $increment = number_format($increment, 2);
        list($hour, $minutes) = explode('.', $increment);
        $date = new DateTime($hour . ':' . $minutes * .6);
        $times[(string) $increment] = $date->format($format);
    }
    return $times;
}

$timeArr = hoursRange();
$array = array_values($timeArr);
echo "<select>";
echo "<option value=''>--Select--</option>";
$currentDateTime = new \DateTime();
foreach($array as $key=>$value){
    $dateTime = \DateTime::createFromFormat('g:ia', $value);
    $disabled = $dateTime <= $currentDateTime;
    echo "<option value=".$key." $disabled>".$value."</option>";
}
echo "</select>";

Answer 2

我发现这是我问题的灵魂

--Selects-- 11:00 AM 上午11:15 上午11:30 上午11:45 12:00 PM 下午12:15 下午12:30 下午12:45 下午01:00 01:15 pm 01:30 pm 下午01:45 下午02:00 02:15 pm 02:30 pm 02:45 pm 下午03:00 03:15 pm 03:30 pm 03:45 pm 下午04:00 下午04:15 04:30 pm 04:45 pm 05:00 pm

- ＆GT;

<?php 
//date_default_timezone_set('Asia/Kolkata'); 
//echo date("g");

function hoursRange($lower = 9, $upper = 20, $step = .25, $format = NULL) {

    if ($format === NULL) {
        $format = 'g:ia'; // 9:30pm
    }
    $times = array();
    foreach(range($lower, $upper, $step) as $increment) {
        $increment = number_format($increment, 2);
        list($hour, $minutes) = explode('.', $increment);
        $date = new DateTime($hour . ':' . $minutes * .6);
        $times[(string) $increment] = $date->format($format);
    }
    return $times;
}

$currentHour = 9;
$array = $timeArr = hoursRange();
//$array = array_values($timeArr);
echo "<select>";
echo "<option value=''>--Select--</option>";
$i = 0;
foreach($array as $key=>$value){
$newArr = explode('.', $key);
    if(($newArr[0] == $currentHour) || $newArr[0] <$currentHour){
        $disabled = 'disabled = disabled';
    }else{
        $disabled = '';
    }   
//$disabled = '';
    echo "<option value=".$i." $disabled>".$value."</option>";
    $i++;
}
echo "</select>";
echo "<pre>";print_r($array);

/// JS

<select id="test" name="test">
  <option value="1">9:00 am</option>
  <option value="2">10:00 am</option>
  <option value="3">11:00 am</option>
  <option value="4">8:00 pm</option>
</select>

<script>
var selectbox = document.getElementById('test');
//var opt = ['9:00 am', '10:00 am','11:00 am','8:00 pm'];
//var opt = ['00:00'=>'12:00 am','10:00'=>'10:00 am'];

var opt = {}; // no need for an array

opt["900"] = '09:00 am';
opt["1000"] = '10:00 am';
opt["1100"] = '11:00 am';
opt["1200"] = '12:00 pm';
opt["1300"] = '01:00 pm';
opt["1400"] = '02:00 pm';

var curtime = '1400';
var str = curtime.split(':');
//console.log(opt);
selectbox.onchange = function(){
    //alert('here');
 var i=0;
    var list = '';
for (var key in opt) {
    console.log('key');

    if(curtime <= key){
        console.log('if');
        var dis = 'disabled';
        console.log(opt[key]);

    }
    list += '<option '+dis+' value='+i+'>'+opt[key]+'</option>';
    //console.log(key);
    i++;
}
    selectbox.innerHTML = list;
};


</script>

php

2 个答案: