XML on the Fly via PHP Attribute Tutorial
We fell for the “give it away” via a “blog posting title” trick! Second time we’ve fallen for it this month. Howevvvvvvvvver … and isn’t there always a “vvvvvvv” with Antipodean winters … we wondered if you picked up with yesterday’s XML on the Fly via PHP Primer Tutorial the lack of one of the … no, not a fourth degree … “Onions of the 4th dimension” layers?
Yes, it’s “XML Attributes Day” … yayyyyyyyy! But seriously … stop smoking now … this is perhaps what the learning of XML concepts is all about. The individualism of data even within “records” of subelements of a similar name can be achieved through the “individualism” of those subelement “attributes”.
As a new “Onions of the 4th dimension” layer, how did we “ease” it into our programming and thinking? Are you sick of the questions yet? Are we kidding ourselves that this will ever really end?
<XML_Attributes_Day>
<complaint am_i_sick_of_the_questions_yet="do_fish_swim">yes</complaint>
<complaint are_we_kidding_ourselves_that_this_will_ever_really_end="how_can_you_be_serious">indubitably</complaint>
</XML_Attributes_Day>
… you betcha! It’s achieved via that “old chestnut” technique of substituting a hardcoding …
>
… for an HTML select (dropdown) element that has > (ie. that hardcoding) as its default value.
If you’re like me, you have to be goaded into hierarchical thinking, as a default condition, but creating some such data we think can be constructive for people like me … maybe like you too! Sometimes it just takes “exposure” to help “flatten” thinking into “lateral thinking” perhaps?! And so we hope today’s downloadable changed PHP creating less rudimentary XML is xml_on_the_fly.php that you can try for yourself at this live run link is, at least, “food for thought”, for you.
Previous relevant XML on the Fly via PHP Primer Tutorial is shown below.
XML on the Fly via PHP Primer Tutorial
The Three P’s (that being PHP and Python and Perl) are all pretty good at interfacing with the XML protocol and format. And that XML is a very important protocol in today’s digital age. Over the last few days with our Android mobile applications, for instance, XML files served the purpose of …
- GUI look data source
- project settings
… the diversity of usage apparent here, and it shows throughout the goings on of users interested in “data”, especially “data with intelligence”. HTML has “data intelligence” capabilities, but not nearly to the pared down degree XML does. It is all about the storage of data, pure and simple, not in the “game” of a look or feel to anything, so much as HTML does.
And this close relationship with “data” makes it no surprise, I’m sure, to you that databases like Oracle or MS-SQL or MySql and others, these days, have syntax especially designed for the import or export usage of XML data in string or file format.
XML is a very hierarchical protocol, which suits the way a lot of data works.
Interested in making some rudimentary XML? Today, we write some XML using PHP and the DOMDocument class, but we have to thank The PHP Anthology (Volume II: Applications) by Harry Fuecks (ISBN: 0957921845) for the idea to try the approach we take today, and they showed code using the “DOM”, DOMDocument’s predecessor. To get from “DOM” thinking to “DOMDocument” thinking, reminded us of that CSS “mapping” to Javascript DOM idea that you substitute the CSS “-” (minus) and next lowercase letter for a Javascript DOM capital letter as per …
CSS
#the_el { background-color: yellow; }
Javascript DOM
document.getElementById('the_el').style.backgroundColor='yellow';
… “DOM” (class) methods often go to “DOMDocument” equivalents via “DOM” “-” lowercase letter mapped to “DOMDocument” capital letter ones.
Today’s downloadable PHP creating very rudimentary XML is xml_on_the_fly.php that you can try for yourself at this live run link.
You might also be interested in Javascript putElement(s)By via PHP Relative URLs Tutorial.
Previous relevant Javascript putElement(s)By via PHP Relative URLs Tutorial is shown below.
Javascript putElement(s)By via PHP Relative URLs Tutorial
Today we’ve continued with the the Javascript DOM journey as explained for the last few days with Javascript putElement(s)By via PHP Local File Tutorial as shown below, as to whether we can come up with some useful “meaningful” functionality for …
- putElementById()
- putElementsByClassName()
- putElementsByTagName()
… in Javascript … and, today, we’ve improved it with the allowance for relative URLs on such HTML elements as img for example, and have looked at Ajax as an idea, but have put off its use, because we see no performance improvement.
The methods will not work with all URL data input, and this is an ongoing curiosity, which we may one day return to examine further, but sometimes you have to take a break on some projects, so, if you don’t mind … there’s been that “to make the morning coffee and breakfast before you even think of it” project we’ve been meaning to get back to … as a matter of fact there’s been a breakthrough on it … and … well … “Would you mind bringing up that dust pan from the laundry?” “The robot’s having another mini nervous breakdown and has put its fist though the plate.” … breakthrough … get it … chortle, chortle.
You may remember, a couple of days ago, the introduction of the PHP DOMDocument class functionality, where this link was very useful. It allows PHP to simulate some of Javascript’s DOM capabilities, and in our case it is used to parse HTML from within PHP. It also makes it easy to accept XML input data, which is presented with the < and > as shown in the XML … you might want to try an XML URL or data file browsed for.
Today you can see that relative URL (mapped to an absolute URL) functionality as a live run.
And we worked out the window.open approach doesn’t work everywhere, so we may end up falling back, a bit, on the underlying PHP, sometimes.
Today’s code changes were helped out enormously by the advice on this link regarding parsing URLs in PHP … thanks.
Today’s downloadable PHP is putElementsBy.php
Progression on the code … putElementsBy.php
Previous relevant Javascript putElement(s)By via PHP Local Files Tutorial is shown below.
Javascript putElement(s)By via PHP Local Files Tutorial
Today we march on with the the Javascript DOM journey as explained for the last few days with Javascript putElement(s)By via PHP Follow Up Tutorial as shown below, as to whether we can come up with some useful “meaningful” functionality for …
- putElementById()
- putElementsByClassName()
- putElementsByTagName()
… in Javascript … and though, today, we’ve improved, it still needs more work, such as catering for relative URLs, Ajax mode, perhaps, and the way it will not work with all URL data input.
You may remember, yesterday, the introduction of the PHP DOMDocument class functionality, where this link was very useful. It allows PHP to simulate some of Javascript’s DOM capabilities, and in our case it is used to parse HTML from within PHP. It also makes it easy to accept XML input data, as this happens here today.
Here, today, we also add functionality for the use of local hard disk file browsing.
Today you can see that extra local file browsing and XML input functionality as a live run.
And we worked out the window.open approach doesn’t work everywhere, so we may end up falling back, a bit, on the underlying PHP, sometimes.
Today’s downloadable PHP is putElementsBy.php
Progression on the code … putElementsBy.php
Previous relevant Javascript putElement(s)By via PHP Follow Up Tutorial is shown below.
Javascript putElement(s)By via PHP Follow Up Tutorial
Today we continue the Javascript DOM journey as explained yesterday with Javascript putElement(s)By via PHP Primer Tutorial as shown below, as to whether we can come up with some useful “meaningful” functionality for …
- putElementById()
- putElementsByClassName()
- putElementsByTagName()
… in Javascript … and though, today, we’ve improved, it still needs more work, such as catering for relative URLs, Ajax mode, perhaps, and the way it will not work with all URL data input.
Today, to improve the program, we can, at times use the PHP DOMDocument class functionality, and this link was very useful. It allows PHP to simulate some of Javascript’s DOM capabilities, and in our case it is used to parse HTML from within PHP.
Today we make it more user-friendly with a text input button to accept a user-defined URL to use as the data base (small blank chortle).
And we worked out the window.open approach doesn’t work everywhere, so we may end up falling back, a bit, on the underlying PHP, sometimes.
Today’s downloadable PHP is putElementsBy.php
Progression on the code … putElementsBy.php
Previous relevant Javascript putElement(s)By via PHP Primer Tutorial is shown below.
Javascript putElement(s)By via PHP Primer Tutorial
If you are into Javascript DOM you will be into …
… and being into programming, for every get you ever see in a function or method name, you may be accustomed to looking for the set or put reverse functionality function or method.
Gadzooks … there is no …
- putElementById()
- putElementsByClassName()
- putElementsByTagName()
… and no set versions either, in Javascript … but today we imagine a set of Javascript functions (minus the document. bizzo though … a poet who doesn’t know it… chortle, chortle) … how could they work? … well, you could try packing them off with a couple of vegemite sandwiches and an orange off up the road to get the bus … or, well, maybe a transfer of HTML element’age (elementary … no end to the chortles today!) to the end of our own webpage (optionally from another URL, perhaps … (we’ll need PHP) … haven’t dealt with relative URLs yet, though).
So, try it if you like …
Today’s downloadable PHP is putElementsBy.php (whose code would improve with the relative URL issue disappearing … and if this disappears you know we got to that first!)
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