我遇到的问题是我无法找出正确的代码来提取我正在寻找的信息
首先是exhibitions.php
<?php
$exhibitionsarray = array(
array("exhibition_id" => "1", "exhibition_title" => "New York, New York", "exhibition_subject" => "New York", "ticket_price" => "10",
"exhibits" => array(
array("exhibit_id" => "3", "exhibit_title" => "Brooklyn Bridge from City Hall Park", "exhibit_description" => "New York, June 2005", "exhibit_image" => "brooklynbridge.jpg", "photographer" => "MLG"),
array("exhibit_id" => "6", "exhibit_title" => "Central Park, New York", "exhibit_description" => "New York, June 2005", "exhibit_image" => "centralpark.jpg", "photographer" => "MLG"),
array("exhibit_id" => "7", "exhibit_title" => "Chrysler Building at night, New York", "exhibit_description" => "New York, July 2001", "exhibit_image" => "chrysler_building.jpg", "photographer" => "MLG")
),
"locations" => array(
array("location_id" => "1", "location_name" => "Kelvingrove Art Gallery and Museum", "location_postcode" => "G3 8AG"),
array("location_id" => "3", "location_name" => "Walker Art Gallery", "location_postcode" => "L3 8EL"),
array("location_id" => "5", "location_name" => "Tate Modern", "location_postcode" => "SE1 9TG")
)
),
array("exhibition_id" => "2", "exhibition_title" => "Spanish Cities", "exhibition_subject" => "Spain", "ticket_price" => "15",
"exhibits" => array(
array("exhibit_id" => "9", "exhibit_title" => "Eiffel Bridge, Girona", "exhibit_description" => "Girona, March 2008", "exhibit_image" => "eiffel_bridge.jpg", "photographer" => "LPK"),
array("exhibit_id" => "13", "exhibit_title" => "Plaza Mayor, Madrid", "exhibit_description" => "Madrid, June 2010", "exhibit_image" => "plazamayor.jpg", "photographer" => "MLG"),
array("exhibit_id" => "14", "exhibit_title" => "Puppy (Day)", "exhibit_description" => "Bilbao, September 2006 - Puppy in daylight", "exhibit_image" => "puppy_day.jpg", "photographer" => "LPK"),
array("exhibit_id" => "15", "exhibit_title" => "Puppy (Night)", "exhibit_description" => "Bilbao, March 2011 - Puppy at night", "exhibit_image" => "puppy_night.jpg", "photographer" => "LPK")
),
"locations" => array(
array("location_id" => "2", "location_name" => "Scottish National Gallery", "location_postcode" => "EH2 2EL")
)
),
array("exhibition_id" => "3", "exhibition_title" => "A Glasgow Viewpoint", "exhibition_subject" => "Glasgow", "ticket_price" => "5",
"exhibits" => array(
array("exhibit_id" => "2", "exhibit_title" => "Bothwell Castle", "exhibit_description" => "Bothwell, April 2011", "exhibit_image" => "bothwell_castle.jpg", "photographer" => "LPK"),
array("exhibit_id" => "10", "exhibit_title" => "Hampden Park", "exhibit_description" => "Glasgow, June 2007 - SQA Event", "exhibit_image" => "hampden.jpg", "photographer" => "MLG"),
array("exhibit_id" => "11", "exhibit_title" => "Hogganfield Loch, Glasgow, Winter", "exhibit_description" => "Glasgow, January 2010", "exhibit_image" => "hogganfield_loch.jpg", "photographer" => "MLG"),
array("exhibit_id" => "16", "exhibit_title" => "Ramblas", "exhibit_description" => "Barcelona, July 1999 - Ramblas (Two Old Friends from Glasgow)", "exhibit_image" => "ramblas.jpg", "photographer" => "MLG"),
array("exhibit_id" => "17", "exhibit_title" => "River Clyde at Bothwell", "exhibit_description" => "Bothwell, April 2011 - River Clyde from Bothwell", "exhibit_image" => "river_clyde.jpg", "photographer" => "LPK"),
array("exhibit_id" => "18", "exhibit_title" => "River Kelvin", "exhibit_description" => "Glasgow, July 2011", "exhibit_image" => "river_kelvin.jpg", "photographer" => "MLG"),
array("exhibit_id" => "21", "exhibit_title" => "University Avenue", "exhibit_description" => "Glasgow, July 2011", "exhibit_image" => "university_avenue.jpg", "photographer" => "LPK")
),
"locations" => array(
array("location_id" => "1", "location_name" => "Kelvingrove Art Gallery and Museum", "location_postcode" => "G3 8AG"),
array("location_id" => "2", "location_name" => "Scottish National Gallery", "location_postcode" => "EH2 2EL"),
array("location_id" => "3", "location_name" => "Walker Art Gallery", "location_postcode" => "L3 8EL"),
array("location_id" => "4", "location_name" => "The Lowry", "location_postcode" => "M50 3AZ"),
array("location_id" => "5", "location_name" => "Tate Modern", "location_postcode" => "SE1 9TG")
)
),
array("exhibition_id" => "4", "exhibition_title" => "Some Churches", "exhibition_subject" => "Religious Architecture", "ticket_price" => "5",
"exhibits" => array(
array("exhibit_id" => "1", "exhibit_title" => "Big Ben", "exhibit_description" => "London, September 2011", "exhibit_image" => "big_ben.jpg", "photographer" => "LPK"),
array("exhibit_id" => "12", "exhibit_title" => "Louvre, Paris", "exhibit_description" => "Paris, June 1998", "exhibit_image" => "louvre.jpg", "photographer" => "LPK"),
array("exhibit_id" => "19", "exhibit_title" => "Sagrada Familia - Honeymoon", "exhibit_description" => "Barcelona, June 1997 - Honeymoon", "exhibit_image" => "sagrada.jpg", "photographer" => "MLG"),
array("exhibit_id" => "20", "exhibit_title" => "Mormon Temple", "exhibit_description" => "Salt Lake City, July 2005", "exhibit_image" => "salt_lake.jpg", "photographer" => "MLG")
),
"locations" => array(
array("location_id" => "1", "location_name" => "Kelvingrove Art Gallery and Museum", "location_postcode" => "G3 8AG"),
array("location_id" => "2", "location_name" => "Scottish National Gallery", "location_postcode" => "EH2 2EL")
)
),
array("exhibition_id" => "5", "exhibition_title" => "Barcelona Highlights", "exhibition_subject" => "Barcelona", "ticket_price" => "15",
"exhibits" => array(
array("exhibit_id" => "4", "exhibit_title" => "Martin at Camp Nou, Honeymoon", "exhibit_description" => "Barcelona, June 1997 - Honeymoon", "exhibit_image" => "campnou.jpg", "photographer" => "LPK"),
array("exhibit_id" => "5", "exhibit_title" => "Placa de Catalunya, Barcelona - Honeymoon", "exhibit_description" => "Barcelona, June 1997 - Honeymoon", "exhibit_image" => "catalunya.jpg", "photographer" => "MLG")
),
"locations" => array(
array("location_id" => "3", "location_name" => "Walker Art Gallery", "location_postcode" => "L3 8EL"),
array("location_id" => "4", "location_name" => "The Lowry", "location_postcode" => "M50 3AZ"),
array("location_id" => "5", "location_name" => "Tate Modern", "location_postcode" => "SE1 9TG")
)
),
array("exhibition_id" => "6", "exhibition_title" => "Martin’s Pictures", "exhibition_subject" => "Martin", "ticket_price" => "5",
"exhibits" => array(
array("exhibit_id" => "8", "exhibit_title" => "David Crosby at David Gilmour gig", "exhibit_description" => "Glasgow, May 2006", "exhibit_image" => "davidcrosby.jpg", "photographer" => "MLG"),
array("exhibit_id" => "22", "exhibit_title" => "Wolves", "exhibit_description" => "Yellowstone Park, October 2004", "exhibit_image" => "wolves.jpg", "photographer" => "MLG")
),
"locations" => array(
array("location_id" => "1", "location_name" => "Kelvingrove Art Gallery and Museum", "location_postcode" => "G3 8AG"),
array("location_id" => "3", "location_name" => "Walker Art Gallery", "location_postcode" => "L3 8EL"),
array("location_id" => "4", "location_name" => "The Lowry", "location_postcode" => "M50 3AZ"),
array("location_id" => "5", "location_name" => "Tate Modern", "location_postcode" => "SE1 9TG")
)
)
);
echo json_encode($exhibitionsarray);
?>
我希望的信息取决于具体的展览ID ...并且只使用展品而不是位置，例如当id = 1我希望这个信息...
array("exhibition_id" => "1", "exhibition_title" => "New York, New York", "exhibition_subject" => "New York", "ticket_price" => "10",
"exhibits" => array(
array("exhibit_id" => "3", "exhibit_title" => "Brooklyn Bridge from City Hall Park", "exhibit_description" => "New York, June 2005", "exhibit_image" => "brooklynbridge.jpg", "photographer" => "MLG"),
array("exhibit_id" => "6", "exhibit_title" => "Central Park, New York", "exhibit_description" => "New York, June 2005", "exhibit_image" => "centralpark.jpg", "photographer" => "MLG"),
array("exhibit_id" => "7", "exhibit_title" => "Chrysler Building at night, New York", "exhibit_description" => "New York, July 2001", "exhibit_image" => "chrysler_building.jpg", "photographer" => "MLG")
),
现在这里是我目前必须获得所有展览信息的代码
function getExibitions()
{
console.log(json);
myExhibitionsView = document.getElementById('exhibitioncontent');
images = document.createElement('ul');
for (var i = 0; i < json.length; i++) {
for (var j = 0; j < json[i].exhibits.length; j++) {
listCheck = document.createElement('p');
listCheck.id = 'image';
listCheck.innerHTML = "<img src = " + "./images/" + json[i].exhibits[j].exhibit_image + " Photo Cover' height='200' width='200'>";
console.log(listCheck);
myExhibitionsView.appendChild(images);
images.appendChild(listCheck);
console.log(listCheck);
}
}
}
这段代码允许我提取json然后使用图片网址...这也是我想在这里做的，但只有它的特定id。非常感谢您的帮助
答案 0 :(得分：1)
要使用PHP获取数据：
foreach( $exhibitionsarray as $val ) {
if( $val['exhibition_id'] == 1 ) {
echo "That's the right one, do something now.";
}
}
在Javascript中使用：
ar.forEach( function(element) {
if( element['exhibition_id'] == 1 ){
console.log(element);
}
});
JSFiddle：http://jsfiddle.net/mhxwg2u5/
我错过了什么或是这一切吗？