现在我有一种动态形式的排序，允许用户选择类别，类型和子类型。然后，此信息将用于PHP函数（希望如此）。所有这些都在PHP文件中。
我希望使用AJAX来调用该PHP文件中的函数。我已经看到了在HTML文档中使用AJAX调用PHP文件的方法，但不是从PHP文档中调用。
这是我configs.php的相关部分：
<?php
use FW\Config;
require_once 'setup.php';
function build($category, $type, $subtype){
//WANT TO GET HERE
}
function getTypes($dir) {
return array_diff(scandir($dir), array('..', '.'));
}
function getSubTypes($dir, $type) {
return array_diff(scandir("$dir//$type"), array('..', '.'));
}
function getVersions($dir, $type, $subType) {
return array_diff(scandir("$dir//$type//$subType"), array('..', '.'));
}
function getFileContents($dir, $type, $subtype, $file){
$path = "$dir/$type/$subtype/$file.txt";
$openFile = fopen($path, "r");
$content = fread($openFile, filesize($path));
fclose($openFile);
return split("/", $content)[0];
}
$project_dir = Config::$appConfig['project_file_dir']['scriptPath'];
$workflow_dir = Config::$appConfig['workflow_file_dir']['scriptPath'];
$project_types = getTypes($project_dir);
$project_subtypes = array();
$project_versions = array();
$workflow_types = getTypes($workflow_dir);
$workflow_subtypes = array();
$workflow_versions = array();
foreach ($project_types as $type) {
$project_subtypes[$type] = getSubTypes($project_dir, $type);
//@todo remove once folder structure is all setup
if ($type !== 'CD') continue;
foreach ($project_subtypes[$type] as $subType) {
$project_versions[$subType] = getVersions($project_dir, $type, $subType);
}
}
foreach ($workflow_types as $type) {
$workflow_subtypes[$type] = getSubTypes($workflow_dir, $type);
foreach ($workflow_subtypes[$type] as $subType) {
$workflow_versions[$subType] = getVersions($workflow_dir, $type, $subType);
}
}
function makeInfoSection($type, $subType, $versions, $dir) {
// list versions
$html .= '<h4>Available Versions</h4>';
$html .= '<ul class="list-group">';
foreach ($versions as $v) {
if (strpos($v, '.txt')) continue;
$html .= '<li class="list-group-item">';
$html .= '<span class="badge"><a href="#" style="color:orange">';
$html .= '<span class="glyphicon glyphicon-arrow-up" aria-hidden="true"';
$html .= 'onclick="build()">'; //@todo add onclick to trigger build()
$html .= '</span></a></span>';
$html .= $v;
$html .= '</li>';
}
$html .= '</ul>';
return $html;
}
function makeSection($parent, $prefix, $type, $subTypes) {
$headingID = 'heading-'.$type;
$bodyID = 'collapse-'.$prefix.$type;
$html = '<div class="panel panel-default" style="margin-bottom:10px;">';
$html .= '<div class="panel-heading" role="tab" id="'.$headingID.'">';
$html .= '<h4 class="panel-title">';
$html .= '<a role="button" data-toggle="collapse" data-parent="'.$parent;
$html .= '" href="#'.$bodyID.'" aria-expanded="true"';
$html .= 'aria-controls="'.$bodyID.'">'.$type;
$html .= '</a></h4></div>';
$html .= '<div id="'.$bodyID.'" class="panel-collapse collapse in" ';
$html .= 'role="tabpanel" aria-labelledby="'.$headingID.'">';
$html .= '<div class="list-group">';
foreach ($subTypes as $subType) {
$target = "tab-".$prefix.$type."-".$subType;
$html .= '<a href="#'.$target.'" class="list-group-item" ';
$html .= 'aria-controls="'.$target.'" role="tab" data-toggle="tab"';
$html .= '>'.$subType.'</a>';
}
$html .= '</div></div></div>';
return $html;
}
?>
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
<style>
.list-group-item.active, .list-group-item.active:hover {
background-color: white;
color: black;
}
</style>
</head>
<body>
<div class="container">
<div class="page-header">
<h1>Configuration Management</h1>
</div>
<div class="row">
<div class="col-md-5 col-md-push-1 col-sm-6">
<ul class="nav nav-tabs" role="tablist" id="config-tabs">
<li role="presentation" class="active">
<a href="#project_list" aria-controls="project_list" role="tab" data-toggle="tab">
<h4>Project</h4>
</a>
</li>
<li role="presentation">
<a href="#workflow_list" aria-controls="workflow_list" role="tab" data-toggle="workflow_list">
<h4>Workflow</h4>
</a>
</li>
</ul>
<div class="tab-content">
<div role="tabpanel" class="tab-pane active panel-group" id="project_list" role="tablist" aria-multiselectable="true">
<?php
foreach ($project_types as $type) {
echo makeSection( '#project_list', 'project-',$type, $project_subtypes[$type]);
}
?>
</div>
<div role="tabpanel" class="tab-pane panel-group" id="workflow_list" role="tablist" aria-multiselectable="true">
<?php
foreach ($workflow_types as $type) {
echo makeSection( '#workflow_list', 'workflow-',$type, $workflow_subtypes[$type]);
}
?>
</div>
</div>
</div>
<div class="col-md-5 col-md-push-1 col-sm-6">
<div id="tabs" class="tab-content" style="padding:0em 0em 0em 1em">
<?php
foreach ($project_types as $type) {
// @TODO remove once folder structure is all setup
if ($type !== 'CD') continue;
foreach ($project_subtypes[$type] as $subType) {
$html = "<div role ='tabpanel' class='tab-pane'";
$html .= "id='tab-project-".$type."-".$subType."'>";
$html .= makeInfoSection($type, $subType, $project_versions[$subType], $project_dir);
$html .= "</div>";
echo $html;
}
}
foreach ($workflow_types as $type) {
foreach ($workflow_subtypes[$type] as $subType) {
$html = "<div role ='tabpanel' class='tab-pane'";
$html .= "id='tab-workflow-".$type."-".$subType."'>";
$html .= makeInfoSection($type, $subType, $workflow_versions[$subType], $workflow_dir);
$html .= "</div>";
echo $html;
}
}
?>
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="12345" crossorigin="anonymous"></script>
<script type="text/javascript">
function build (url, params, cb) {
url += "/buildWithParameters";
$.ajax({
type: 'POST',
url: url,
data: params,
success: cb
});
};
$('.collapse').collapse();
$('.list-group a').click(function (e) {
e.preventDefault();
$(this).tab('show');
});
$('#config-tabs a').click(function (e) {
e.preventDefault();
$(this).tab('show');
})
</script>
</body>
</html>
在上面的代码中，我想调用PHP函数build。我有一个JavaScript函数build()，它在适当的时候被调用，并且应该有AJAX来进行调用。我该怎么做？我怎么通过params？
答案 0 :(得分：1)
为什么不只是为AJAX例程调用一个单独的文件？
无论如何，要回答你的问题：
AJAX将通过GET或POST将数据字符串发送到您的PHP文件。标准化一个 - 很多人喜欢发帖。
如您所知，AJAX代码块看起来像这样（您需要发送函数所需的信息）：
var var_value = $('#my_element').val();
var cat = $('#category_element').val();
var typ = $('#type_element').val();
var sub = $('#subtype_element').val();
$.ajax({
type: 'post',
url: 'your_file.php',
data: 'var_name=' +var_value+ '&cat=' +cat+ '&typ=' +typ+ '&sub=' +sub,
success: function(d){
if (d.length) alert(d); //for testing - alerts anything your function ECHOs
}
});//end ajax
在PHP文件中，只捕获var：
<?php
//Your existing PHP file contents go here. At bottom add:
if ( isset($_POST('var_name') ){
$category = $_POST('cat');
$type = $_POST('typ');
$subtype = $_POST('sub');
build($category, $type, $subtype);
}
See this post了解一些有用的AJAX技巧和简单示例
答案 1 :(得分：0)
试试这个：
<?php
use FW\Config;
require_once 'setup.php';
//Check the get variable for the function being called.
if(isset($_GET['func']) AND function_exists($_GET['func'])){
$func=$_GET['func'];
$func();
//This is an ajax call, we really should exit here so we can let $func handle the ajax output;
exit;
}
function build($category, $type, $subtype){
//WANT TO GET HERE
}
function getTypes($dir) {
return array_diff(scandir($dir), array('..', '.'));
}
function getSubTypes($dir, $type) {
return array_diff(scandir("$dir//$type"), array('..', '.'));
}
function getVersions($dir, $type, $subType) {
return array_diff(scandir("$dir//$type//$subType"), array('..', '.'));
}
function getFileContents($dir, $type, $subtype, $file){
$path = "$dir/$type/$subtype/$file.txt";
$openFile = fopen($path, "r");
$content = fread($openFile, filesize($path));
fclose($openFile);
return split("/", $content)[0];
}
$project_dir = Config::$appConfig['project_file_dir']['scriptPath'];
$workflow_dir = Config::$appConfig['workflow_file_dir']['scriptPath'];
$project_types = getTypes($project_dir);
$project_subtypes = array();
$project_versions = array();
$workflow_types = getTypes($workflow_dir);
$workflow_subtypes = array();
$workflow_versions = array();
foreach ($project_types as $type) {
$project_subtypes[$type] = getSubTypes($project_dir, $type);
//@todo remove once folder structure is all setup
if ($type !== 'CD') continue;
foreach ($project_subtypes[$type] as $subType) {
$project_versions[$subType] = getVersions($project_dir, $type, $subType);
}
}
foreach ($workflow_types as $type) {
$workflow_subtypes[$type] = getSubTypes($workflow_dir, $type);
foreach ($workflow_subtypes[$type] as $subType) {
$workflow_versions[$subType] = getVersions($workflow_dir, $type, $subType);
}
}
function makeInfoSection($type, $subType, $versions, $dir) {
// list versions
$html .= '<h4>Available Versions</h4>';
$html .= '<ul class="list-group">';
foreach ($versions as $v) {
if (strpos($v, '.txt')) continue;
$html .= '<li class="list-group-item">';
$html .= '<span class="badge"><a href="#" style="color:orange">';
$html .= '<span class="glyphicon glyphicon-arrow-up" aria-hidden="true"';
$html .= 'onclick="build()">'; //@todo add onclick to trigger build()
$html .= '</span></a></span>';
$html .= $v;
$html .= '</li>';
}
$html .= '</ul>';
return $html;
}
function makeSection($parent, $prefix, $type, $subTypes) {
$headingID = 'heading-'.$type;
$bodyID = 'collapse-'.$prefix.$type;
$html = '<div class="panel panel-default" style="margin-bottom:10px;">';
$html .= '<div class="panel-heading" role="tab" id="'.$headingID.'">';
$html .= '<h4 class="panel-title">';
$html .= '<a role="button" data-toggle="collapse" data-parent="'.$parent;
$html .= '" href="#'.$bodyID.'" aria-expanded="true"';
$html .= 'aria-controls="'.$bodyID.'">'.$type;
$html .= '</a></h4></div>';
$html .= '<div id="'.$bodyID.'" class="panel-collapse collapse in" ';
$html .= 'role="tabpanel" aria-labelledby="'.$headingID.'">';
$html .= '<div class="list-group">';
foreach ($subTypes as $subType) {
$target = "tab-".$prefix.$type."-".$subType;
$html .= '<a href="#'.$target.'" class="list-group-item" ';
$html .= 'aria-controls="'.$target.'" role="tab" data-toggle="tab"';
$html .= '>'.$subType.'</a>';
}
$html .= '</div></div></div>';
return $html;
}
?>
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
<style>
.list-group-item.active, .list-group-item.active:hover {
background-color: white;
color: black;
}
</style>
</head>
<body>
<div class="container">
<div class="page-header">
<h1>Configuration Management</h1>
</div>
<div class="row">
<div class="col-md-5 col-md-push-1 col-sm-6">
<ul class="nav nav-tabs" role="tablist" id="config-tabs">
<li role="presentation" class="active">
<a href="#project_list" aria-controls="project_list" role="tab" data-toggle="tab">
<h4>Project</h4>
</a>
</li>
<li role="presentation">
<a href="#workflow_list" aria-controls="workflow_list" role="tab" data-toggle="workflow_list">
<h4>Workflow</h4>
</a>
</li>
</ul>
<div class="tab-content">
<div role="tabpanel" class="tab-pane active panel-group" id="project_list" role="tablist" aria-multiselectable="true">
<?php
foreach ($project_types as $type) {
echo makeSection( '#project_list', 'project-',$type, $project_subtypes[$type]);
}
?>
</div>
<div role="tabpanel" class="tab-pane panel-group" id="workflow_list" role="tablist" aria-multiselectable="true">
<?php
foreach ($workflow_types as $type) {
echo makeSection( '#workflow_list', 'workflow-',$type, $workflow_subtypes[$type]);
}
?>
</div>
</div>
</div>
<div class="col-md-5 col-md-push-1 col-sm-6">
<div id="tabs" class="tab-content" style="padding:0em 0em 0em 1em">
<?php
foreach ($project_types as $type) {
// @TODO remove once folder structure is all setup
if ($type !== 'CD') continue;
foreach ($project_subtypes[$type] as $subType) {
$html = "<div role ='tabpanel' class='tab-pane'";
$html .= "id='tab-project-".$type."-".$subType."'>";
$html .= makeInfoSection($type, $subType, $project_versions[$subType], $project_dir);
$html .= "</div>";
echo $html;
}
}
foreach ($workflow_types as $type) {
foreach ($workflow_subtypes[$type] as $subType) {
$html = "<div role ='tabpanel' class='tab-pane'";
$html .= "id='tab-workflow-".$type."-".$subType."'>";
$html .= makeInfoSection($type, $subType, $workflow_versions[$subType], $workflow_dir);
$html .= "</div>";
echo $html;
}
}
?>
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="12345" crossorigin="anonymous"></script>
<script type="text/javascript">
function build (url, params, cb) {
url += "/buildWithParameters";
//Added so we set the $_GET['func']
url += "?func=build";
$.ajax({
type: 'POST',
url: url,
data: params,
success: cb
});
};
$('.collapse').collapse();
$('.list-group a').click(function (e) {
e.preventDefault();
$(this).tab('show');
});
$('#config-tabs a').click(function (e) {
e.preventDefault();
$(this).tab('show');
})
</script>
</body>
</html>
我只更改了代码的两个部分。
位于需要setup.php的正下方，就在您的Javascript构建函数内部。
如果你需要传递参数，你当前对build的调用是空的，你正在调用build（），但是build需要3个参数。
因此，如果url为空（或在此情况下未定义），您可能会发现该URL未到达正确的位置。参数既空也有空。因此，可能需要使用
在函数内部检查所有这些内容if(typeof VARIABLE == "undefined" ) VARIABLE="SOMETHING"; //populate, you can also call a function here to get data.
答案 2 :(得分：-1)
在php标记启动后放在代码下面。
// check if ajax call
if(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && !empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest')
{
// call your php function here and return some data
$data = someFunction();
echo json_encode($data); // return data back in json format, can return in other format as well.
exit(); // do use exit here otherwise it will return the whole file code
}