PHPでこのXMLファイルを解析するには？

Question

私はこれに関するほとんどのサイトで提供されている例を理解していません。たとえば、「Month：1」、「ID：1」、「Date：01-01-2017」のようなユーザー入力を取得したい場合は、それを正確に表示したいと考えています。

私はこれが私の現在の考え

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しかし、これは動作しないでXML内を移動する方法を見つけ出すことはできません。どのように私はユーザー入力を使用して出力することができますが、入力が動作します。

これは、データを読み取るために私の現在のPHPファイルである：ここで

<?php 
$xml=simplexml_load_file("XML1.xml") or die("Error: Cannot create object"); 

echo $_GET["SearchChoice"]; 
echo $_GET["IDsend"]; 
echo $_GET["DateSend"]; 

switch ($_GET["SearchChoice"]) 
{ 
    case "ID Search": 
    $passID = intval($_GET["IDsend"]); 
    if ($passID !== 0) 
    { 
     $passID = $passID - 1; 
    } 
    $attr = $xml->finances[$passID]->attributes(); 
    echo "Date: "; 
    echo $attr['date']; 
    echo "<br> Projection: "; 
    echo $xml->finances[$passID]->projection . ",<br>Recommended Staff: "; 
    echo $xml->finances[$passID]->recommendedStaff . ",<br>Staff Wages: "; 
    echo $xml->finances[$passID]->staffWages . ",<br>Actual: "; 
    echo $xml->finances[$passID]->actual . "<br>"; 
    break; 
    case "Date Search": 
    $passDate = strval($_GET["DateSend"]); 
    $nodes = $xml->xpath("/year2017/finances[@date='". $passDate . "']"); 
    if ($nodes) 
     $nodes = array_shift($nodes); 
    break; 
    default: 
    $nodes = NULL; 
} 

if ($nodes) 
{ 
    echo "Date: "; 
    $attr = $nodes->attributes(); 
    echo $attr['date']; 
    echo "<br> Projection: "; 
    echo $nodes->projection . ",<br>Recommended Staff: "; 
    echo $nodes->recommendedStaff . ",<br>Staff Wages: "; 
    echo $nodes->staffWages . ",<br>Actual: "; 
    echo $nodes->actual . "<br>"; 
} 
?> 

は私のXMLファイルの抜粋です。

<fullyear> 
<month value="1"> 
    <finances id="1" date="01-01-2017"> 
     <projection>414</projection> 
     <recommendedStaff>20</recommendedStaff> 
     <staffWages>100</staffWages> 
     <actual>250</actual> 
    </finances> 
    <finances id="2" date="02-01-2017"> 
     <projection>124</projection> 
     <recommendedStaff>8</recommendedStaff> 
     <staffWages>150</staffWages> 
     <actual>250</actual> 
     </finances> 
    <finances id="3" date="03-01-2017"> 
     <projection>687</projection> 
     <recommendedStaff>20</recommendedStaff> 
     <staffWages>150</staffWages> 
     <actual>250</actual> 
    </finances> 
    <finances id="4" date="04-01-2017"> 
     <projection>587</projection> 
     <recommendedStaff>15</recommendedStaff> 
     <staffWages>150</staffWages> 
     <actual>250</actual> 
    </finances> 
    <finances id="5" date="05-01-2017"> 
     <projection>124</projection> 
     <recommendedStaff>5</recommendedStaff> 
     <staffWages>150</staffWages> 
     <actual>250</actual> 
    </finances> 
    <finances id="6" date="06-01-2017"> 
     <projection>874</projection> 
     <recommendedStaff>22</recommendedStaff> 
     <staffWages>150</staffWages> 
     <actual>250</actual> 
    </finances> 
    <finances id="7" date="07-01-2017"> 
     <projection>574</projection> 
     <recommendedStaff>18</recommendedStaff> 
     <staffWages>150</staffWages> 
     <actual>250</actual> 
    </finances> 
</month> 
    <month value="2"> 
    <finances id="32" date="01-02-2017"> 
     <projection>101</projection> 
     <recommendedStaff>10</recommendedStaff> 
     <staffWages>101</staffWages> 
     <actual>101</actual> 
    </finances> 
    <finances id="33" date="02-02-2017"> 
     <projection>101</projection> 
     <recommendedStaff>10</recommendedStaff> 
     <staffWages>101</staffWages> 
     <actual>101</actual> 
    </finances> 
    <finances id="34" date="03-02-2017"> 
     <projection>101</projection> 
     <recommendedStaff>10</recommendedStaff> 
     <staffWages>101</staffWages> 
     <actual>101</actual> 
    </finances> 
    <finances id="35" date="04-02-2017"> 
     <projection>101</projection> 
     <recommendedStaff>10</recommendedStaff> 
     <staffWages>101</staffWages> 
     <actual>101</actual> 
    </finances> 
    <finances id="36" date="05-02-2017"> 
     <projection>101</projection> 
     <recommendedStaff>10</recommendedStaff> 
     <staffWages>101</staffWages> 
     <actual>101</actual> 
    </finances> 
    </month> 
</fullyear> 

Answer 1

あなたはいくつか欠けています。 case "ID Search":では月のように、xpathでは適切なパスを提供していません。

以下試してみてください：XPATH日付検索の

<?php 
$xml=simplexml_load_file("XML1.xml") or die("Error: Cannot create object"); 

$_GET["SearchChoice"]="Date Search"; 
$_GET["IDsend"]=1;// these are just sample values 
$_GET["DateSend"]="01-01-2017"; 
$month=1; 
switch ($_GET["SearchChoice"]) 
{ 
    case "ID Search": 
     $passID = intval($_GET["IDsend"]); 
     if ($passID !== 0) 
     { 
      $passID = $passID - 1; 
     } 

     $attr = $xml->month[$month]->finances[$passID]->attributes(); 
     echo "Date: "; 
     echo $attr['date']; 
     echo "<br> Projection: "; 
     echo $xml->month[$month]->finances[$passID]->projection . ",<br>Recommended Staff: "; 
     echo $xml->month[$month]->finances[$passID]->recommendedStaff . ",<br>Staff Wages: "; 
     echo $xml->month[$month]->finances[$passID]->staffWages . ",<br>Actual: "; 
     echo $xml->month[$month]->finances[$passID]->actual . "<br>"; 
     break; 
    case "Date Search": 
     $passDate = strval($_GET["DateSend"]); 
     $nodes = $xml->xpath("/fullyear/month/finances[@date='". $passDate . "']"); 
     if ($nodes) 
      $nodes = array_shift($nodes); 
     break; 
    default: 
     $nodes = NULL; 
} 

if ($nodes) 
{ 
    echo "Date: "; 
    $attr = $nodes->attributes(); 
    echo $attr['date']; 
    echo "<br> Projection: "; 
    echo $nodes->projection . ",<br>Recommended Staff: "; 
    echo $nodes->recommendedStaff . ",<br>Staff Wages: "; 
    echo $nodes->staffWages . ",<br>Actual: "; 
    echo $nodes->actual . "<br>"; 
} 

OUTPUT：

Date: 01-01-2017 
Projection: 414, 
Recommended Staff: 20, 
Staff Wages: 100, 
Actual: 250 

をXPATH ID検索FOR OUTPUT：

Date: 01-02-2017 
Projection: 101, 
Recommended Staff: 10, 
Staff Wages: 101, 
Actual: 101