Insert PHP code In WordPress Page and Post

Question

I want to know the visitor country using PHP and display it in on a WordPress Page. But when I add PHP code to a WordPress page or post it gives me an error.

How can we add PHP code on WordPress pages and posts?

<?PHP
    try
    {
        function visitor_country()
        {
            $client  = @$_SERVER['HTTP_CLIENT_IP'];
            $forward = @$_SERVER['HTTP_X_FORWARDED_FOR'];
            $remote  = $_SERVER['REMOTE_ADDR'];
            $result  = "Unknown";
            if(filter_var($client, FILTER_VALIDATE_IP))
            {
                $ip = $client;
            }
            elseif(filter_var($forward, FILTER_VALIDATE_IP))
            {
                $ip = $forward;
            }
            else
            {
                $ip = $remote;
            }

            $ip_data = @json_decode(file_get_contents("http://www.geoplugin.net/json.gp?ip=" . $ip));

            if($ip_data && $ip_data->geoplugin_countryName != null)
            {
                $result = array('ip' => $ip,
                                'continentCode' => $ip_data->geoplugin_continentCode,
                                'countryCode' => $ip_data->geoplugin_countryCode,
                                'countryName' => $ip_data->geoplugin_countryName,
                                );
            }
            return $result;
        }


        $visitor_details = visitor_country(); // Output Country name [Ex: United States]
        $country = $visitor_details['countryName'];

What error does this give you?

andrewsi
– andrewsi

2013-09-19 13:37:45 +00:00
Commented Sep 19, 2013 at 13:37 — andrewsi
– andrewsi, Commented Sep 19, 2013 at 13:37

Ennui · Accepted Answer · 2013-09-19 13:41:24Z

61

WordPress does not execute PHP in post/page content by default unless it has a shortcode.

The quickest and easiest way to do this is to use a plugin that allows you to run PHP embedded in post content.

There are two other "quick and easy" ways to accomplish it without a plugin:

Make it a shortcode (put it in functions.php and have it echo the country name) which is very easy - see here: Shortcode API at WP Codex
Put it in a template file - make a custom template for that page based on your default page template and add the PHP into the template file rather than the post content: Custom Page Templates

answered Sep 19, 2013 at 13:41

Ennui

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2 Comments

Mohini Over a year ago

I am using custom theme,I created one page from admin back-end and I want to use different header structure(top part of page) for this page only. I can't use template file here. I want to do using back-end page only. I put one short code in that set one variable & checked in header.php is that value getting or not? so that depending on that value I will display header.php part which I want for this page. but this variable's value is getting blank. Please, tell me solution

John Smith Over a year ago

Downvoted for giving links instead of providing a solution. When those pages move, this answer becomes useless.

brasofilo · Accepted Answer · 2013-09-19 15:04:12Z

16

You can't use PHP in the WordPress back-end Page editor. Maybe with a plugin you can, but not out of the box.

The easiest solution for this is creating a shortcode. Then you can use something like this

function input_func( $atts ) {
    extract( shortcode_atts( array(
        'type' => 'text',
        'name' => '',
    ), $atts ) );

    return '<input name="' . $name . '" id="' . $name . '" value="' . (isset($_GET\['from'\]) && $_GET\['from'\] ? $_GET\['from'\] : '') . '" type="' . $type . '" />';
}
add_shortcode( 'input', 'input_func' );

See the Shortcode_API.

edited Sep 19, 2013 at 15:04

brasofilo

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answered Sep 19, 2013 at 13:44

Dinesh

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Comments

marc_s · Accepted Answer · 2020-08-04 09:04:04Z

Description:

there are 3 steps to run PHP code inside post or page.

In functions.php file (in your theme) add new function
In functions.php file (in your theme) register new shortcode which call your function:

add_shortcode( 'SHORCODE_NAME', 'FUNCTION_NAME' );

use your new shortcode

Example #1: just display text.

In functions:

function simple_function_1() {
    return "Hello World!";
}

add_shortcode( 'own_shortcode1', 'simple_function_1' );

In post/page:

[own_shortcode1]

Effect:

Hello World!

Example #2: use for loop.

In functions:

function simple_function_2() {
    $output = "";
    
    for ($number = 1; $number < 10; $number++) {    
        // Append numbers to the string
        $output .= "$number<br>";
    } 
    
    return "$output";
}

add_shortcode( 'own_shortcode2', 'simple_function_2' );

In post/page:

[own_shortcode2]

Effect:

Example #3: use shortcode with arguments

In functions:

function simple_function_3($name) {
    return "Hello $name";
}

add_shortcode( 'own_shortcode3', 'simple_function_3' );

In post/page:

[own_shortcode3 name="John"]

Effect:

Hello John

Example #3 - without passing arguments

In post/page:

[own_shortcode3]

Effect:

Hello

John Langford · Accepted Answer · 2017-01-30 21:20:16Z

3

When I was trying to accomplish something very similar, I ended up doing something along these lines:

wp-content/themes/resources/functions.php

add_action('init', 'my_php_function');
function my_php_function() {
    if (stripos($_SERVER['REQUEST_URI'], 'page-with-custom-php') !== false) {
        // add desired php code here
    }
}

answered Jan 30, 2017 at 21:20

John Langford

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