我有一个包含这些字段的表places
id，country_code，postal_code，place_name，admin_name1，admin_code1， admin_name2，admin_code2，admin_name3，admin_code3，纬度， 经度，准确度
我有一个带有搜索输入字段的谷歌地图，如果我搜索＆＃34;密歇根＆＃34;它应该列出密歇根州所有的城镇和城镇的邮政编码，如果我点击一个，它应该带我到地图上的那个地方。
到目前为止，它在开发人员的控制台中没有返回任何错误。
但是，如果我直接转到http://localhost/pset8_new/public/search.php?geo=Cambridge+MA它应该返回具有适当结果的JSON代码，而是我得到这些错误
警告：preg_split（）：未知的修饰符＆＃39; /＆＃39;在 /home/jharvard/vhosts/localhost/public/pset8_new/public/search.php on 第9行
警告：array_map（）：参数＃2应该是一个数组 /home/jharvard/vhosts/localhost/public/pset8_new/public/search.php on 第9行
警告：array_search（）期望参数2为数组，null中给出null /home/jharvard/vhosts/localhost/public/pset8_new/public/search.php on 第11行
警告：无法修改标头信息 - 已发送的标头 （输出始于 /home/jharvard/vhosts/localhost/public/pset8_new/public/search.php:11） 在/home/jharvard/vhosts/localhost/public/pset8_new/public/search.php中 在第98行
我在这里缺少什么？
这是search.php
<?php
require(__DIR__ . "/../includes/config.php");
// numerically indexed array of places
$places = [];
// TODO: search database for places matching $_GET["geo"], store in $places
$params = array_map("trim", preg_split("/[/ \n/,]+/", $_GET["geo"]));
// remove "US" param
if (($index = array_search("US", $params)) !== false) {
unset($params[$index]);
}
$search = [];
$cityFound = 0;
$stateFound = 0;
$zipFound = 0;
for ( $n = 0; $n < count($params); $n++ )
{
//if only digits => set id zip
if (is_numeric($params[$n]))
{
$search['zip'] = $params[$n];
$zipFound = 1;
}
// if two letters => set id state
elseif ( strlen($params[$n]) === 2 )
{
// compare with the the table
$state = query("SELECT admin_name1 FROM places WHERE admin_code1 = (?) LIMIT 1", $params[$n]);
// if match was found change to full name
if ($state)
{
// change array with corresponding state full name
$search['state'] = $state[0]['admin_name1'];
$stateFound = 1;
}
}
// if match against admin_name1 => state
elseif ( strlen($params[$n]) > 2)
{
// compare with the the table -> state
$state = query("SELECT admin_name1 FROM places WHERE admin_name1 = (?) LIMIT 1", $params[$n]);
// if match was found change to full name
if ($state)
{
// change array with corresponding state full name
$search['state'] = $params[$n];
$stateFound = 1;
}
// compare with the the table city
$city = query("SELECT place_name FROM places WHERE place_name = (?) LIMIT 1", $params[$n]);
// if match was found set key <- city
if ($city)
{
$search['city'] = $params[$n];
$cityFound = 1;
}
}
}
// if zip found
if ($zipFound === 1)
{
// put the array back together using implode().
$query = $search['zip'];
// Search across multiple columns
$places = query("SELECT * FROM places WHERE MATCH(postal_code, place_name, admin_name1, admin_code1) AGAINST (?)", $query);
}
// if only only city or state found
elseif ($cityFound + $stateFound === 1)
{
// put the array back together using implode().
$query = implode(" ", $search);
// Search across multiple columns
$places = query("SELECT * FROM places WHERE MATCH(postal_code, place_name, admin_name1, admin_code1) AGAINST (?)", $query);
}
// if city and state found
elseif ($cityFound + $stateFound === 2)
{
// Search across multiple columns
$places = query("SELECT * FROM places WHERE place_name = ? AND admin_name1 = ?", $search['city'], $search['state']);
}
//foreach ($rows as $value)
//{
// array_push($places, $value);
//}
// output places as JSON (pretty-printed for debugging convenience)
header("Content-type: application/json");
print(json_encode($places, JSON_PRETTY_PRINT));
?>
这是script.js
function configure()
{
// update UI after map has been dragged
google.maps.event.addListener(map, "dragend", function() {
update();
});
// update UI after zoom level changes
google.maps.event.addListener(map, "zoom_changed", function() {
update();
});
// remove markers whilst dragging
google.maps.event.addListener(map, "dragstart", function() {
removeMarkers();
});
// configure typeahead
// https://github.com/twitter/typeahead.js/blob/master/doc/jquery_typeahead.md
$("#q").typeahead({
autoselect: true,
highlight: true,
minLength: 1
},
{
source: search,
templates: {
empty: "no places found yet",
suggestion: _.template("<p><span id='place_name'><%- place_name %>,</span> <span id='admin_name1'><%- admin_name1 %></span> <span id='postal_code'><%- postal_code %></span></p>")
}
});
// re-center map after place is selected from drop-down
$("#q").on("typeahead:selected", function(eventObject, suggestion, name) {
// ensure coordinates are numbers
var latitude = (_.isNumber(suggestion.latitude)) ? suggestion.latitude : parseFloat(suggestion.latitude);
var longitude = (_.isNumber(suggestion.longitude)) ? suggestion.longitude : parseFloat(suggestion.longitude);
// set map's center
map.setCenter({lat: latitude, lng: longitude});
// update UI
update();
});
// hide info window when text box has focus
$("#q").focus(function(eventData) {
hideInfo();
});
// re-enable ctrl- and right-clicking (and thus Inspect Element) on Google Map
// https://chrome.google.com/webstore/detail/allow-right-click/hompjdfbfmmmgflfjdlnkohcplmboaeo?hl=en
document.addEventListener("contextmenu", function(event) {
event.returnValue = true;
event.stopPropagation && event.stopPropagation();
event.cancelBubble && event.cancelBubble();
}, true);
// update UI
update();
// give focus to text box
$("#q").focus();
}
/**
* Removes markers from map.
*/
function removeMarkers(){
for(var i = 0; i < markers.length;i++){
markers[i].setMap(null);
markers[i].length = 0;
}
}
/**
* Searches database for typeahead's suggestions.
*/
function search(query, cb){
// get places matching query (asynchronously)
var parameters = {
geo: query
};
$.getJSON("search.php", parameters)
.done(function(data, textStatus, jqXHR) {
// call typeahead's callback with search results (i.e., places)
//console.log(data);
cb(data);
})
.fail(function(jqXHR, textStatus, errorThrown) {
// log error to browser's console
console.log(errorThrown.toString());
});
}
这是index.html
<!-- https://developers.google.com/maps/documentation/javascript/tutorial -->
<div id="map-canvas"></div>
<!-- http://getbootstrap.com/css/#forms -->
<form class="form-inline" id="form" role="form">
<div class="form-group">
<label class="sr-only" for="q">City, State, Postal Code</label>
<input class="form-control" id="q" placeholder="City, State, Postal Code" type="text"/>
</div>
</form>
</div>
答案 0 :(得分：1)
错误消息告诉您第9行的preg_split中有“未知修饰符'/'”。请查看第9行的preg_split：
$params = array_map("trim", preg_split("/[/ \n/,]+/", $_GET["geo"]));
我假设你试图用空格，新行或逗号分割地址？如果是这样，你用错误类型的斜线逃脱这些。要转义正则表达式中的字符，您需要使用反斜杠，所以：
$params = array_map("trim", preg_split("/[\ \n\,]+/", $_GET["geo"]));