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How to use explode function to delimit and display different values

I’m making a random sentence generator for my English class. I’m close but because of my limited php and javascript knowledge I need to ask for help. I’m not bad at reading the code, I just get stuck writing it.
I want to use explode to break up a string of comma seperated values. The string is a mix of English and Spanish, on the .txt file they would seperated like:
The book, El libro
The man, El hombre
The woman, La mujer
etc.
I would like to break these two values into an array and display them in separate places on my web page.
I`m going to use a random text generator script that I found, it’s working great with no problems. I just need to modify it using explode to read, separate the values into an array, and be able to display the separate values of the array.
<?php
/* File, where the random text/quotes are stored one per line */
$settings['text_from_file'] = 'quotes.txt';
/*
How to display the text?
0 = raw mode: print the text as it is, when using RanTex as an include
1 = Javascript mode: when using Javascript to display the quote
*/
$settings['display_type'] = 1;
/* Allow on-the-fly settings override? 0 = NO, 1 = YES */
$settings['allow_otf'] = 1;
// Override type?
if ($settings['allow_otf'] && isset($_GET['type']))
{
$type = intval($_GET['type']);
}
else
{
$type = $settings['display_type'];
}
// Get a list of all text options
if ($settings['text_from_file'])
{
$settings['quotes'] = file($settings['text_from_file']);
}
// If we have any text choose a random one, otherwise show 'No text to choose from'
if (count($settings['quotes']))
{
$txt = $settings['quotes'][array_rand($settings['quotes'])];
}
else
{
$txt = 'No text to choose from';
}
// Output the image according to the selected type
if ($type)
{
// New lines will break Javascript, remove any and replace them with <br />
$txt = nl2br(trim($txt));
$txt = str_replace(array("\n","\r"),'',$txt);
// Set the correct MIME type
header("Content-type: text/javascript");
// Print the Javascript code
echo 'document.write(\''.addslashes($txt).'\')';
}
else
{
echo $txt;
}
?>
The script that displays the result:
<script type="text/javascript" src="rantex.php?type=1"></script>
Can someone please help me modify the rantex.php file so that I can use explode to separate the different comma separated values, and use a different script to call them in different places on my web page?
Thank you, and please excuse my noobness.

The following seems unnecessary, since file() will have already removed new line characters:
// New lines will break Javascript, remove any and replace them with <br />
$txt = nl2br(trim($txt));
$txt = str_replace(array("\n","\r"),'',$txt);
To break your line, you may instead use:
list($english, $spanish) = explode(', ', trim($txt));

It seems you are trying to use PHP to serve a static page with some random sentences, right? So why not use PHP to serve valid JSON, and handle to display logic on the client?
Heres a quick implementation.
// Get the data from the text file
$source = file_get_contents('./quotes.txt', true);
// Build an array (break on every line break)
$sentences = explode("\n", $source);
// Filter out empty values (if there is any)
$filtered = array_filter($sentences, function($item) {
return $item !== "";
});
// Build a hashmap of the array
$pairs = array_map(function($item) {
return ['sentence' => $item];
}, $filtered);
// Encode the hashmap to JSON, and return this to the client.
$json = json_encode($pairs);
Now you can let the client handle the rest, with some basic JavaScript.
// Return a random sentence from your list.
var random = sentences[Math.floor(Math.random() * sentences.length)];
// Finally display it
random.sentence
[edit]
You can get the JSON data to client in many ways, but if you don't want to use something like Ajax, you could simply just dump the contents on your webpage, then use JavaScript to update the random sentence, from the global window object.
// Inside your php page
<p>English: <span id="english"></span></p>
<p>Spanish: <span id="spanish"></span></p>
<script>
var sentences = <?= json_encode($pairs); ?>;
var random = sentences[Math.floor(Math.random() * sentences.length)];
var elspa = document.getElementById('spanish');
var eleng = document.getElementById('english');
elspa.innerText = random.sentence.split(',')[1];
eleng.innerText = random.sentence.split(',')[0];
</script>

Ok, so I have this figured out, I take 0 credit because I paid someone to do it. Special thanks to #stormpat for sending me in the right direction, if not for him I wouldn't have looked at this from a JSON point of view.
The .PHP file is like so:
<?php
$f_contents = file('quotes.txt');
$line = trim($f_contents[rand(0, count($f_contents) - 1)]);
$data = explode(',', $line);
$data['eng'] = $data[0];
$data['esp'] = $data[1];
echo json_encode($data);
?>
On the .HTML page in the header:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script>
(function ($) {
$(function()
{
function load_random_data() {
$.get('random_line.php', function(data) {
var data = $.parseJSON(data);
$('#random_english').text(data.eng);
$('#random_spanish').text(data.esp);
});
}
load_random_data();
$('#get_random').click(function(e){
e.preventDefault();
load_random_data();
});
});
})(jQuery);
</script>
This splits the different variables into classes, so to call them into my html page I call them by their class, for instance I wanted to drop the variable into a table cell so I gave the individual td cell a class:
<td id="random_spanish"></td>
<td id="random_english"></td>
Plus as a bonus the coder threw in a nifty button to refresh the json classes:
<input type="button" value="Get random" id="get_random" />
So now I don`t have to have my students refresh the whole web page, they can just hit the button and refresh the random variables.
Thanks again everyone!

Convert PHP objects array to javascript array

I retrieve image paths with the function get_all();. This get_all function retrieves images as an object. This object has the attributes name, source_path and date. I want my javascript to add images to a div. I have the following:
The instantiate.php includes files like Jquery and another JS file.
<?php
require_once("../../include/instantiate.php");
$photos = Photos::get_all();
$JSPhotos;
foreach($photos as $photo) { $JSPhotos + $photo->source_path; }
?>
<script type="text/javascript">
$(document).ready(function() {
var photos = <?php echo json_encode($JSPhotos); ?>;
for(var i = 0; i <= 10; i++)
{
create_image("../"+photos[i]);
}
});
This does not work. Anyone got a solution?
Solution in Jeroen's Post!
New Problem;
In the create_image function I set the class and src of the image element. When you click such an image I want an alert box to show up. I have checked if the class is set correctly, and I concluded that all images did have the classname "imgid". So, any idea why this dont work?
Script in the javascript part:
$(".imgid").click(function() {
alert("hey");
});

You are not assigning anything to your variable.
You probably want:
$JSPhotos = array();
foreach($photos as $photo) {
$JSPhotos[] = $photo->source_path;
}
Or something similar.

jQuery $.post() using output data as selector

I am trying to build a quiz environment. The user selects an answer and then clicks submit. Upon submit, the following jquery is called:
$(document).ready(function() {
$('.btn-large').click(function() {
$.post("correct_quiz.php",
{
choices : $('input[name=choice][type=radio]:checked').serialize()
},
function(data) {
var temp = '#correct' + data;
var temp2 = '#correct3';
$(temp).show(); // Make the wrong/right icons visible
});
});
});
This jquery makes a green or red icon appear, based on whether the answer was correct or not. The correct_quiz.php script contains:
<?php
$root = "/users/stadius/maapc/public_html/";
include($root . "connect_to_database.php");
$choices = $_POST['choices']; // This will for example output "choice=3"
echo substr($choices,7,7); // This will then output "3"
?>
I ran into a problem, when I try the above jquery code with variable temp2 the script works like I want. But when I try it with variable temp it doesn't. When I debug, I see that they contain exactly the same string though: both are '#correct3' (when I choose the 3rd answer).
So why is this not working when I use variable temp, and is working when using temp2?

I think your problem is in this line:
echo substr($choices,7,7);
Try to use:
$list = explode('=', $choices);
echo $list[1];
instead of substr

Drupal 6 javascript in module block for front page

I'm trying to create a simple image slider on the front page of my drupal website. I wrote a module with the basic outline as follows
<?php
function slider_init(){
drupal_add_js(drupal_get_path('module', 'slider') .'/slider.js');
}
function slider_block($op = 'list', $delta = 0, $edit = array()) {
$block = array();
switch ($op) {
case "list":
// Generate listing of blocks from this module, for the admin/block page
$block[0]["info"] = t("slider");
break;
case "view":
// Generate content for blocks from this module
$block_content = "";
$block_content .= "hello";
//Query for the projects
$icons = db_query("SELECT * FROM {alumni_frontpage_projects}");
//Initiation arrays from each table column: title, description, url, icon link
$links = array();
$title = array();
$description = array();
$url = array();
//Generate arrays from each table column: title, description, url, icon link
while($icon_data = db_fetch_array($icons)){
$links[] = $icon_data['slider_image_location'];
$title[] = $icon_data['title'];
$description[]= $icon_data['description'];
$url[] = $icon_data['url'];
}
//Count elements in array and randomly choose one
$res = count($links)-1;
$seed = rand(0,$res);
//Generate HTML and Javascript of Slider
//Check that content isn't empty
if ($block_content == "") {
$block_content = t("Sorry No Content");
}
$block["content"] = $block_content;
break;
case "save":
break;
case "configure":
break;
}
return $block;
}
Now, everything is fine. I generate a block and I can place it wherever I want. Great. But I would really like to use javascript in this block so that I can pass the arrays and use onclick events to slide through some images from the arrays i queried. So I found out that I will have to pass the variables into javascript and I'll have to identify the javascript file i want to use in the module.
//add variable to the Javascript
drupal_add_js(array('slider_settings' => array('variable_name' => $variable_name)), 'setting');
//add Javascript file to module
drupal_add_js(drupal_get_path('module', 'slider') .'/slider.js');<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I put these in the hook_init BUT NOTHING HAPPENS!!!!! I tested to see basic alerts. If I put hard code into the _block, such as:
$block_content .= '
<script type="text/javascript">
var x
x = 50;
document.write(x); //prints the value of x
</script>';
Then I see '50' prints.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If I try to pass a variable to the hard coded script. That DOES NOT WORK either.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If I try to write 50 through the previous code, but from a separate file called slider.js which is in the same folder using "drupal_add_js(drupal_get_path('module', 'slider') .'/slider.js');", That DOES NOT WORK either (even though I'm not passing a variable)
So what the heck is going on!! Is it possible I'm missing some important core drupal files? Is there a way to trouble shoot this further?
Thanks!

drupal_add_js should work in hook_init().First Check whether your hook function is correctly named as ModuleName_init() or not.

ckeditor inline save/submit

I can't work out how to grab the edited data from a CKEditor instance and post it to a url.
I'm looking at something this:
http://nightly.ckeditor.com/3995/samples/inlineall.html
and I can't work out how the changes can be saved. Can I post the newly edited data to be posted to a PHP along with the ID of the element being edited?
Similarly to this:
editor.on('configLoaded', function(){
// do some stuff
});
I was hoping I could do something like this:
editor.on('clickAway', function(e){
id = e.id();
// do some ajax stuff
});
But I can't seem to find anything, anywhere.
Has anyone worked out how to do this?
Thank you.

I'm sure there are many ways to pull this off, but here's my solution. I'm using the Smarty Template Engine, but this technique should work with vanilla HTML too.
First off, here's an example of some HTML stored in my template file named "dog_fleas.tpl":
<script type="text/javascript" src="/js/ckeditor/ckeditor.js"></script>
<script type="text/javascript" src="/js/admin/mycms.js"></script>
<div>
<div id="flea-blurb" tpl="/templates/dog_fleas.tpl" contenteditable="true">
<h1>My Dog Has Fleas</h1>
<p>This text is editable via the CMS!</p>
</div>
<p>This text is not editable</p>
</div>
The javascript (mycms.js) to handle the inline editing is:
$(document).ready(function() {
CKEDITOR.disableAutoInline = true;
$("div[contenteditable='true']" ).each(function( index ) {
var content_id = $(this).attr('id');
var tpl = $(this).attr('tpl');
CKEDITOR.inline( content_id, {
on: {
blur: function( event ) {
var data = event.editor.getData();
var request = jQuery.ajax({
url: "/admin/cms-pages/inline-update",
type: "POST",
data: {
content : data,
content_id : content_id,
tpl : tpl
},
dataType: "html"
});
}
}
} );
});
});
The above code does a few things:
It converts any div tag with the attribute contenteditable = "true" to inline-editable.
After content is edited (on blur), the editable element id, tpl filename, and edited content are sent to the server via an ajax call.
The tpl attribute is necessary in my situation to identify the file being edited. The element id specifies which element was modified.
Although my example only contains one editable region, this code supports multiple editable regions in a single file.
On the server-side, here's my PHP code. I'm using a framework, so my $this->_POST() functions might look a little unusual, but hopefully you get the idea:
// Get the posted parameters
$new_content = $this->_POST('content');
$content_id = $this->_POST('content_id');
$tpl_filename = $this->_POST('tpl');
// Get the contents of the .tpl file to edit
$file_contents = file_get_contents(APPPATH . 'views' . $tpl_filename);
// create revision as a backup in case of emergency
$revised_filename = str_replace('/', '.', $tpl_filename);
$revised_filename = ltrim ($revised_filename, '.');
file_put_contents(APPPATH . 'views/templates/revisions/' . $revised_filename . '.' . time(), $file_contents);
// Prepare to match the DIV tag
// Credit to: http://stackoverflow.com/questions/5355452/using-a-regular-expression-to-match-a-div-block-having-a-specific-id
$re = '% # Match a DIV element having id="content".
<div\b # Start of outer DIV start tag.
[^>]*? # Lazily match up to id attrib.
\bid\s*+=\s*+ # id attribute name and =
([\'"]?+) # $1: Optional quote delimiter.
\b' . $content_id . '\b # specific ID to be matched.
(?(1)\1) # If open quote, match same closing quote
[^>]*+> # remaining outer DIV start tag.
( # $2: DIV contents. (may be called recursively!)
(?: # Non-capture group for DIV contents alternatives.
# DIV contents option 1: All non-DIV, non-comment stuff...
[^<]++ # One or more non-tag, non-comment characters.
# DIV contents option 2: Start of a non-DIV tag...
| < # Match a "<", but only if it
(?! # is not the beginning of either
/?div\b # a DIV start or end tag,
| !-- # or an HTML comment.
) # Ok, that < was not a DIV or comment.
# DIV contents Option 3: an HTML comment.
| <!--.*?--> # A non-SGML compliant HTML comment.
# DIV contents Option 4: a nested DIV element!
| <div\b[^>]*+> # Inner DIV element start tag.
(?2) # Recurse group 2 as a nested subroutine.
</div\s*> # Inner DIV element end tag.
)*+ # Zero or more of these contents alternatives.
) # End 2$: DIV contents.
</div\s*> # Outer DIV end tag.
%isx';
if (preg_match($re, $file_contents, $matches))
{
$content_to_replace = $matches[0];
$replacement_content = $content_to_replace;
// Replace the inner content of $replacement_content with $new_content
$replacement_content = preg_replace('/(<div(?:.*?)>)(?:.*)(<\/div>)/msi',"$1" . $new_content . "$2", $replacement_content);
// Now replace the content_to_replace with $replacement content in the HTML
$new_file_contents = str_replace($content_to_replace, $replacement_content, $file_contents);
// write out the new .tpl file
file_put_contents(APPPATH . 'views' . $tpl_filename, $new_file_contents);
}
The PHP code above is basically loading the HTML, locating the div tag with the proper id, then replacing the contents of that div tag with the content sent down via the ajax call. The HTML is then re-saved to the server. I also include some code to store backup revisions just in case things go terribly wrong.
I realize that regular expressions aren't always the best solution. In my case, it was difficult to use the PHP Dom Object Model because my HTML content isn't valid HTML. You might look into using the Dom Object Model instead if your system is simpler than mine.
I hope this helps!

I've found the following solution: How do I save inline editor contents on the server?
I'm using the blur event

Using above answer of #clone45 and modified it. The data will be saved busing Save button and only after some changes carried out were old and new data is compared.
Overridden existing save button of inline editor and included below only alerted part of #clone45's answer.
<script>
CKEDITOR.disableAutoInline = true;
$("div[contenteditable='true']").each(function(index) {
var content_id = $(this).attr('id');
var tpl = $(this).attr('tpl');
var oldData = null;
CKEDITOR.inline(content_id, {
on: {
instanceReady: function(event) {
//get current data and save in variable
oldData = event.editor.getData();
// overwrite the default save function
event.editor.addCommand("save", {
modes: {
wysiwyg: 1,
source: 1
},
exec: function() {
var data = event.editor.getData();
//check if any changes has been carried out
if (oldData !== data) {
oldData = data;
$.ajax({
type: 'POST',
url: 'process.php',
data: {
content: data,
content_id: content_id,
tpl: tpl
}
})
.done(function(data) {
alert('saved');
})
.fail(function() {
alert('something went wrong');
});
} else
alert('looks like nothing has been changed');
}
});
}
}
});
});
</script>
Hope this helps!!