从header.php传递变量到functions.php

时间:2019-04-22 23:08:24

标签: php wordpress

我在functions.php中具有功能

function my_function() {
//do something
}

但是在此函数内部,我需要检查页面模板,并且需要使用is_page()或is_home(),但在functions.php中,此方法无效。

我可以在header.php中检查页面模板,例如:

if (is_page(7)) :
$myVariable = 1;
else :
$myVariable = 2;
endif;

最后,它可以在header.php中工作,但是现在在my_function中的functions.php中,我需要这样的东西:

function my_function(){
if($myVariable == 1) :
//do something
else :
//do something else
endif;
}

我不知道如何传递此变量,或者如何检查函数中的页面模板。

2 个答案:

答案 0 :(得分:0)

您可以按如下方式使用全局关键字。

if (is_page(7)) :
    $myVariable = 1;
else :
    $myVariable = 2;
endif;

function my_function(){
    global $myVariable;
    if($myVariable == 1) :
         //do something
    else :
         //do something else
    endif;
}

答案 1 :(得分:0)

您可以像这样将变量作为参数传递给函数:

<div>
    <strong>Current lat: </strong> {{ profile.latitude }}<br/>
    <strong>Current long: </strong> {{ profile.longitude }}<br/><br/>
</div>

<label for="locations-status">Locations enabled?</label>
<input type="checkbox" id="locations-status">

<script
  src="https://code.jquery.com/jquery-3.4.0.min.js"
  integrity="sha256-BJeo0qm959uMBGb65z40ejJYGSgR7REI4+CW1fNKwOg="
  crossorigin="anonymous"></script>

<script>
    var PROFILE_ID = {{ profile.id }};

</script>

<script type="text/javascript">

    function getCookie(name) {
        var cookieValue = null;
        if (document.cookie && document.cookie !== '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = cookies[i].trim();
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) === (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }

    var csrftoken = getCookie('csrftoken');

    $(document).ready(function(){
        $('input[type="checkbox"]').click(function(){
            if($(this).prop("checked") == true){
                getLocation()
            }
            else if($(this).prop("checked") == false){
                console.log("Location services are disabled");
            }
        });

        $.ajaxSetup({
            beforeSend: function(xhr, settings) {
                if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
                    xhr.setRequestHeader("X-CSRFToken", csrftoken);
                }
            }
        });
    });

    function csrfSafeMethod(method) {
        // these HTTP methods do not require CSRF protection
        return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
    }

    function getLocation() {
        if (navigator.geolocation) {
            navigator.geolocation.getCurrentPosition(showPosition);
        } else {
            console.log("Geolocation is not supported by this browser.");
        }
    }

    function showPosition(position) {
        console.log("Latitude: " + position.coords.latitude + " Longitude: " + position.coords.longitude);
        var latlon = (position.coords.latitude + ','+ position.coords.longitude);

        $.post({
            url: "{% url 'profile-detail' profile.id %}",
            data: {
                latitude: position.coords.latitude,
                longitude: position.coords.longitude,
            }
        });

        console.log(latlon);
    };
</script>

或者您可以像这样声明function my_function($myVariable) { if($myVariable == 1) : //do something else : //do something else endif; } 作为全局变量:

$myVariable