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Full Discussion: Are certifications worth it?
The Lounge What is on Your Mind? Are certifications worth it? Post 303004323 by Peasant on Friday 29th of September 2017 11:19:27 AM
Old 09-29-2017
They do look good, but the quality really depends of the person effort later on.

If you just take class, followed by exam (full of useless stuff as you folks say)
and never use the knowledge, it is useless and will vaporize over time.

Of course, good things can be heard from a great teacher.
But they are not always so great..

You mentioned kerberized nfs, iscsi, selinux.
Those are actually great techs and great to know.
The world will insist more on those things as time progresses.

As for ISCSI, i find it a great cheap learning/education tool for virtual clusters on work/home PC for disk backend.

Regards
Peasant.
 

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DOMDOCUMENT.GETELEMENTBYID(3)						 1					     DOMDOCUMENT.GETELEMENTBYID(3)

DOMDocument::getElementById - Searches for an element with a certain id

SYNOPSIS
public DOMElement DOMDocument::getElementById (string $elementId) DESCRIPTION
This function is similar to "DOMDocument::getElementsByTagName" but searches for an element with a given id. For this function to work, you will need either to set some ID attributes with "DOMElement::setIdAttribute" or a DTD which defines an attribute to be of type ID. In the later case, you will need to validate your document with "DOMDocument::validate" or DOMDocument::$vali- dateOnParse before using this function. PARAMETERS
o $elementId - The unique id value for an element. RETURN VALUES
Returns the DOMElement or NULL if the element is not found. EXAMPLES
Example #1 DOMDocument::getElementById() Example The following examples use book.xml which contains the following: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE books [ <!ELEMENT books (book+)> <!ELEMENT book (title, author+, xhtml:blurb?)> <!ELEMENT title (#PCDATA)> <!ELEMENT blurb (#PCDATA)> <!ELEMENT author (#PCDATA)> <!ATTLIST books xmlns CDATA #IMPLIED> <!ATTLIST books xmlns:xhtml CDATA #IMPLIED> <!ATTLIST book id ID #IMPLIED> <!ATTLIST author email CDATA #IMPLIED> ]> <?xml-stylesheet type="text/xsl" href="style.xsl"?> <books xmlns="http://books.php/" xmlns:xhtml="http://www.w3.org/1999/xhtml"> <book id="php-basics"> <title>PHP Basics</title> <author email="jim.smith@basics.php">Jim Smith</author> <author email="jane.smith@basics.php">Jane Smith</author> <xhtml:blurb><![CDATA[ <p><em>PHP Basics</em> provides an introduction to PHP.</p> ]]></xhtml:blurb> </book> <book id="php-advanced"> <title>PHP Advanced Programming</title> <author email="jon.doe@advanced.php">Jon Doe</author> </book> </books> <?php $doc = new DomDocument; // We need to validate our document before refering to the id $doc->validateOnParse = true; $doc->Load('book.xml'); echo "The element whose id is 'php-basics' is: " . $doc->getElementById('php-basics')->tagName . " "; ?> The above example will output: The element whose id is 'php-basics' is: book SEE ALSO
DOMDocument::getElementsByTagName. PHP Documentation Group DOMDOCUMENT.GETELEMENTBYID(3)
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