我正经历着最艰难的时刻，试图做一些我认为应该简单的事情。我读过很多关于访问PHP JSON数组的例子，但我似乎找不到一个适合我的用例（或者我不明白这些部分是如何适合的）。
这是我在PHP中的JSON（example_data.PHP）：
<?php
$contents = array(
1 => array(
'contentid' => '1',
'full' => 'Song Name by Artist Name (maininfo)',
'aname' => 'Artist Name',
'sname' => 'Song Name',
'main' => 'core content #1',
'maininfo' => 'url'
),
2 => array(
'contentid' => '2',
'full' => 'Song Name by Artist Name (maininfo)',
'aname' => 'Artist Name',
'sname' => 'Song Name',
'main' => 'core content #2',
'maininfo' => 'url')
);
?>
下面的代码将一个搜索变量（q）作为输入，并将其传递给JSON以搜索部分或完全匹配。
<?php
$q = $_GET['q'];
include('example_data.php');
$results = array('contents' => array());
foreach ($contents as $name => $data)
{
if (stripos($name, $q) !== false)
{
$results['contents'][$name] = $data;
}
}
$final_contents = array('header' => array(), 'data' => array());
$final_contents['header'] = array('title' => 'Music', 'num' => count($results['contents']), 'limit' => 6);
foreach ($results['contents'] as $name => $data)
{
$final_contents['data'][] = array('primary' => $data['sname'], 'secondary' => $data['aname']);
}
/* Output JSON */
$final = array($final_contents);
header('Content-type: application/json');
echo json_encode($final);
die();
?>
它工作正常，但只会根据数组名称（本例中为"1"或"2"）搜索匹配项。显然，用户不会搜索"1"，而是搜索"艺人名称"或"歌曲名称"或核心内容。
有人能告诉我如何修改这段代码，使其采用"q"，并将其用作对"full"键的搜索吗？特别是，如果"full"的值中存在部分/完全匹配，我希望将其作为JSON返回（包括aname、sname、main、maininfo等）。预计会有多个结果。JSON现在按预期返回，但用户不会搜索"1"、"2"等，因此它实际上不可用。
真的很感激你提前抽出时间！
您需要确定是否存在匹配，并在外循环中返回数组
$contents = array(
1 => array(
'contentid' => '1',
'full' => 'Song Name by Artist Name (maininfo)',
'aname' => 'Artist Name',
'sname' => 'Song Name',
'main' => 'core content #1',
'maininfo' => 'url'
),
2 => array(
'contentid' => '2',
'full' => 'Song Name by Artist Name (maininfo)',
'aname' => 'Artist Name',
'sname' => 'Song Name',
'main' => 'core content #2',
'maininfo' => 'url')
);
$a = 'song'; // value that will be searched for in all fields
$percent = NULL;
$results = array();
$match = FALSE;
echo "starting search...<br>";
foreach($contents as $name) {
foreach($name as $key =>$val){
echo "starting full field match...<br>";
if (isset($q) && similar_text($val,$a ,$percent )) {
echo $name."[".$key."] = ".$val." vs ".$a." Percentage Match: ".$percent." % <br>";
($percent >40 ? $match = TRUE : $match = FALSE);
if($match){
echo "MATCHED % greater 40% match...<br>";
break;
}
echo " end full field match<hr>";
}
if (isset($a) && similar_text($val,$a ,$percent )) {
echo "starting name match...<br>";
echo $name."[".$key."] = ".$val." vs ".$a." Percentage Match: ".$percent." % <br>";
($percent >40 ? $match = TRUE : $match = FALSE);
if($match){
echo "MATCHED % greater 40% match...<br>";
break;
}
}
echo " end name match<hr>";
}
if ($match) {
echo "Match added to array<br>";
//push full array
array_push($results, $name);
}
}
echo "search completed<hr>";
/* Output JSON */
header('Content-type: application/json');
echo json_encode($results[0]);
die();