比较复选框的关联数组键和值

Question

我有一个带有事件空间复选框的 Web 表单。

复选框值是从我的数据库 "facility_event_charges" 中的一个 table 中获取的：

假设我勾选了 5 和 6，"Audio Visual Equipment" 和 "Audio Visual Technician" 并提交了我的表格。

这会将 ID 保存到一个单独的 table 中，我为此 "Event Space" 假设我的 "Event Space" 的 ID 为 63。查找 table 现在有两个条目用于我的 ID，因为我选中了两个复选框：

一切都很好，得救了。现在，假设我需要实际编辑与此相关的费用 space。

当我点击编辑时，我的网络表单呈现了表单字段，但复选框是空的！！为什么？因为它正在从我的 "facility_event_charges" table 抓取数据。

我需要将此 table 数据（数组）与保存在我的查找 table（数组）中的数据进行比较，以确定哪些值是共同的，并在这些复选框中进行检查。

在我的编辑中想要的结果 space webform 会检查那些

我的复选框"charges"数组：

array(6) { 
[1]=> string(9) "Officials" 
[2]=> string(6) "Ushers" 
[3]=> string(19) "Additional Staffing" 
[4]=> string(16) "Special Lighting" 
[5]=> string(22) "Audio Visual Equipment" 
[6]=> string(23) "Audio Visual Technician" 
}

-- 我也可以这样生成费用：

array(6) { 
[0]=> array(1) { ["FacilityEventCharge"]=> array(2) { ["id"]=> string(1) "1" ["type"]=> string(9) "Officials" } } 
[1]=> array(1) { ["FacilityEventCharge"]=> array(2) { ["id"]=> string(1) "2" ["type"]=> string(6) "Ushers" } } 
[2]=> array(1) { ["FacilityEventCharge"]=> array(2) { ["id"]=> string(1) "3" ["type"]=> string(19) "Additional Staffing" } } 
[3]=> array(1) { ["FacilityEventCharge"]=> array(2) { ["id"]=> string(1) "4" ["type"]=> string(16) "Special Lighting" } } 
[4]=> array(1) { ["FacilityEventCharge"]=> array(2) { ["id"]=> string(1) "5" ["type"]=> string(22) "Audio Visual Equipment" } } 
[5]=> array(1) { ["FacilityEventCharge"]=> array(2) { ["id"]=> string(1) "6" ["type"]=> string(23) "Audio Visual Technician" } } }

我的查找 table 数组：

array(2) { 
[0]=> array(1) { ["EventCharge"]=> array(1) { ["facility_event_charges_id"]=> string(1) "5" } } 
[1]=> array(1) { ["EventCharge"]=> array(1) { ["facility_event_charges_id"]=> string(1) "6" } } 
}

-- 我的尝试一直没有成功 - 尝试过 php array_intersect array_intersect_assoc array_map('array_diff_assoc')

我需要遍历复选框费用数组并从查找 table 数组中找到一个匹配项，当它匹配时，标记复选框 "checked"。

谁有我可以测试的工作示例？复选框费用数组 key 需要匹配 "facility_event_charges_id"

Answer 1

这有效...

但它会根据您最终构建数组的准确程度而改变...但这应该只需要更改 if-then 语句并且可能需要更改 i（索引变量）的值。

<html>
<head></head>
<body>
<form>
<?php

// assume you build this based on a sql query
// you don't need to use the primary key for the
// array index
$charges[0]="Officials";
$charges[1]="Ushers";
$charges[2]="Additional Staffing";
$charges[3]="Special Lighting";
$charges[4]="AV Equipment";
$charges[5]="AV Technician";


// your array of eventcharges
// select facility_event_charges_id from tbl where facility_event_spaces_id='63'
// loop thru the result of teh query make a simple array of your evencharge ids
// gonna hardcode mine out of laziness
// since php is typeless we can use strings to compare to ints
// directly as long as we use == and not ===
// and in_array() (used below) goes with loose comparison too
$ec[]="4";
$ec[]="5";

// now we have an array of our descriptions
// and an array of the already selected choices
// from the db data

for($i=0;$i<count($charges);$i++){
    print('<input type="checkbox" name="charges" value="'.$i.'" ');
    if(in_array($i,$ec)){
        print("checked");
    }
    print(" > ".$charges[$i]."<br />");
}

?>
</form>
</body></html>

Answer 2

根据上面给出的数组，您可以这样比较

例如让take $charge array as

array(6) { 
[1]=> string(9) "Officials" 
[2]=> string(6) "Ushers" 
[3]=> string(19) "Additional Staffing" 
[4]=> string(16) "Special Lighting" 
[5]=> string(22) "Audio Visual Equipment" 
[6]=> string(23) "Audio Visual Technician" 
}

拿$lookup array as

array(2) { 
[0]=> array(1) { ["EventCharge"]=> array(1) { ["facility_event_charges_id"]=> string(1) "5" } } 
[1]=> array(1) { ["EventCharge"]=> array(1) { ["facility_event_charges_id"]=> string(1) "6" } } 
}

你可以compare both array like below

$charges = array(
    1 => "Officials",
    2 => "Ushers",
    3 => "Additional Staffing",
    4 => "Special Lighting",
    5 => "Audio Visual Equipment",
    6 => "Audio Visual Technician"
);
$lookup = array(
    array("EventCharge" => array(
            "facility_event_charges_id" => "5"
        )
    ), array(
        "EventCharge" => array(
            "facility_event_charges_id" => "6"
        )
    )
);
$lookup = array_column(array_column($lookup, 'EventCharge'), 'facility_event_charges_id');
foreach ($charges as $key => $value) {
    echo '<input type="checkbox" name="charges" value="' . $key . '" '.(in_array($key, $lookup)?"checked":"").'>';
    echo '<label>'.$value.'<label>';
}

编辑

如果 array_column() 不受支持，您可以使用如下循环创建数组并测试

$arr=array();
foreach ($lookup as $key => $value) {
    foreach ($value as $k => $v) {
        $arr[]=$v['facility_event_charges_id'];
    }    
}
foreach ($charges as $key => $value) {
    echo '<input type="checkbox" name="charges" value="' . $key . '" '.(in_array($key, $arr)?"checked":"").'>';
    echo '<label>'.$value.'<label>';
}

Answer 3

您好，您可以使用以下 code.i 假设您有 $arr=array('5','6');来自 database.so 你可以按如下方式我们

<?php
$arr=array('5'=>'Audio Visual Equipment','6'=>'Audio Visual Technician');
$arr=array_keys($arr);//if you have associated array
?>



<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta charset="ISO-8859-1"> 
</head>
<body>
    <input type="checkbox" name="charges" value="1" <?=in_array('1', $arr)?'checked=true':''?>> Officials<br>
    <input type="checkbox" name="charges" value="2" <?=in_array('2', $arr)?'checked=true':''?>> Ushers<br>
    <input type="checkbox" name="charges" value="3" <?=in_array('3', $arr)?'checked=true':''?>> Additional Staffing <br>
    <input type="checkbox" name="charges" value="4" <?=in_array('4', $arr)?'checked=true':''?>> Special Lighting <br>
    <input type="checkbox" name="charges" value="5" <?=in_array('5', $arr)?'checked=true':''?>> Audio Visual Equipment<br>
    <input type="checkbox" name="charges" value="6" <?=in_array('6', $arr)?'checked=true':''?>> Audio Visual Technician<br>
</body>
</html>

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