How to load jQuery before fallback in Wordpress footer - wordpress

Question

I enqueue a bunch of scripts into the footer of my page:
function core_scripts() {
wp_deregister_script('jquery');
wp_register_script('jquery', '//cdnjs.cloudflare.com/ajax/libs/jquery/1.11.0/jquery.min.js', false, null, true);
wp_register_script('bootstrap', '//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js', array('jquery'), '3.1.1', true);
wp_register_script('flexslider', get_template_directory_uri().'/js/jquery.flexslider-min.js', array('jquery'), '2.2.2', true);
wp_register_script('jqzoom', get_template_directory_uri().'/js/jquery.jqzoom-core-pack.js', array('jquery'), '2.3', true);
wp_register_script('fancybox', get_template_directory_uri().'/js/jquery.fancybox.pack.js', array('jquery'), '2.1.5', true);
... a bunch of others ...
}
add_action('init', 'core_scripts'); // Add Custom Scripts
function write_site_scripts()
{
wp_enqueue_script('jquery');
wp_enqueue_script('bootstrap');
wp_enqueue_script('flexslider');
wp_enqueue_script('jqzoom');
wp_enqueue_script('fancybox');
...etc...
}
add_action('wp_enqueue_scripts', 'write_site_scripts'); // write all enqueued scripts
function write_custom_scripts()
{
$html = "<!-- Custom script -->
<script>
var custom = '1';
</script>";
echo $html;
}
add_action('wp_footer', 'write_custom_scripts'); // this script writes in the footer before the dependent js scripts
My problem is that the custom script is always written to the page before the jQuery scripts, I guess because the custom script is written to the page via an echo write command.
How can I add custom javascript code into the footer after the jQuery scripts have been written to the page? ie. I need to delay the add_action('wp_footer', 'write_custom_scripts'); to be executed at a later moment, or how can I use enqueue to add a custom javascript?
Note I have removed the CDN code posted earlier since this leads everyone into another discussion - a valid one, but it's not the issue I am after at this moment.

Answer 1

Edit II
Since the question has changed in essence many times, and In order to save you from reading ( e.g. - understanding ) all of the long explanation below, just use .
add_action('wp_footer', 'write_custom_scripts',9999);
This will set the priority to very high and will probably echo your code last ( unless you or other plugin / theme developers used a higher priority or later filter ..)
For those who want to do the right way :
function my_javascripts() {
wp_enqueue_script('the-script-handle',
'path/to/file.js',
array('jquery','other_script_that_we_depend_on'),
'scriptversion eg. 1.0',
true);
}
add_action('wp_enqueue_scripts', 'my_javascripts');
When you enqueue a script like above ( the right way ) , you can see that it wp_enqueue_script() has 4 arguments.path, dependencies ,version ,and in-footer .
This is the only right way to load a script , and if you need , just enqueue also jquery at the same function -- wp will make sure it loads first .
The dependencies means that wp will not load your script UNLESS jQuery is already loaded and will try to load jQuery FIRST ...
The LAST argument will actually define weather to load your script in the FOOTER ( TRUE ) or in header ( FALSE )
That being said , you can always load jQuery in the HEADER and not footer ( but it is not so recommended )
After that , For the last bit of your script , you can echo it in the footer , and you can also control how and when to add it .
What I do not understand , is the overall aim of your method . ( this part is about the "doing it wrong " )
Firstly - I think that loading from CDN is not a good IDEA . AND I AM NOT ALONE. it is to be considered a bad practice in WP without any meaningful Pros ( the time issue is a joke since you will be probably loading a LOT of other scripts directly AND scripts are Cached ).
While doing it - it is good that you think of a fallback, but the fallback should be wp own version - and not one that you include yourself .
If you still insist on doing it wrong , you can always do something like ( or just change order of execution ):
remove_action('wp_head', 'wp_print_scripts');
remove_action('wp_head', 'wp_print_footer_scripts', 9);
remove_action('wp_head', 'wp_enqueue_scripts', 1);
// your stuff
add_action('wp_footer', 'wp_print_scripts', 5);
add_action('wp_footer', 'wp_enqueue_scripts', 5);
add_action('wp_footer', 'wp_print_footer_scripts', 5);
Which basically allow you to echo your stuff before or after the wp_footer action at will And while technically it will work -. it is still wrong .
Edit I After question edit .
you have several problems in that code .
you are registering jQuery (CDN ) with the handle jquery which is reserved for WP.
If you want to do that ( and you shouldn´t . please don´t ) you need to deregister jquery BEFORE registering it again .
<?php wp_deregister_script( 'jquery' ); ?>
Again. I can not stress enough how wrong that is .
2 . you are registring the whole bunch of script - but where do you enqueue them ?
3 . Again . Like in comments ( I think you still do not understand )
If you have a script to add to the footer - you need to register and enqueue it with dependencies .. ( the right way )
In your case from edited question :
make a file called my_script.js
var custom = '1';
Enqueue it !
wp_enqueue_script('the-script-handle',
'path/to/my_script.js',
array('jquery','other_script_that_we_depend_on'),
'0.0.1',
true);
In this case , your script will load AFTER the dependencies you listed ...
What you are trying to do is echoing directly .
As for the comment of how to correctly pass variables - read here
And you can also do something like this ( objects ):
$data = (object) array(
'render' => 'canvas',
'size' => 100,
'radius' => ($q_corner_r * 0.3),
);
$output .=
<script type="text/javascript">;
//<![CDATA[
var options = ' . json_encode($data) . '
// ]]>;
</script>';