DevelopPHP
home gear home donate
Search Results For
in:

Libraries book

HTML Library CSS Library JavaScript Library PHP Library

Videosbook

PHP and MySQL JavaScript HTML and CSS Vector and 3D Flash Actionscript Android Dev Miscellaneous

Resourcesbook

Website Hosting Developer Q+A
Sprite Programming Mastery
Concatenation Assignment Operators
The concatenation operator ( . ) returns the combined value of its right and left values. The variable's data type has an affect on the output.

Here are code examples using the concatenation operator ( . ) to unite or combine variable values
Learn HTML
<?php
echo "deve"."lop";          //displays "develop"
echo "<br /><br />";            // html line breaks

echo "deve" "lop";        //displays "develop"
echo "<br /><br />";            // html line breaks

echo 3;                     //displays "43"
echo "<br /><br />";            // html line breaks

echo 4.3;                       //displays "4.3"
echo "<br /><br />";            // html line breaks

echo "4" "3";                //displays "43"
echo "<br /><br />";            // html line breaks

echo '4' '3';                  //displays "43"
?>


The concatenating assignment operator ( .= ), which appends the variable value on the right side to the variable on the left side. We use this method many times to compound and keep adding to one variable so it will retain its current value, and just append the new values onto the current value's tail end.

Here is a code example using the concatenating assignment operator ( .= ) to append or compound values
Learn HTML
<?php
$var1 
"Hello World!";
$var2 "We are silly!";
$htmlOutput ''// set as empty, but defined

// notice the period before each ( = ) sign... that is concatenating them onto the original var value
$htmlOutput .= '<table bgcolor="#663366" cellpadding="8">';
$htmlOutput .= '<tr>';
$htmlOutput .= '<td bgcolor="#CCCCCC">';
$htmlOutput .= ' ' $var1 ' ';
$htmlOutput .= '</td>';
$htmlOutput .= '<td bgcolor="#FFFF00">';
$htmlOutput .= ' ' $var2 ' ';
$htmlOutput .= '</td>';
$htmlOutput .= '</tr>';
$htmlOutput .= "</table>";
// Now print or echo the output
echo "$htmlOutput ";
?>

Develop PHP browser display window

Hello World! We are silly!



Home   •   Terms of Use   •   T-Shirts   •   RSS   •   Testimonials   •   Subscribe   •   Classroom Chalkboard   •   Developer Q+A   •   Donate   •   Top ↑
Popular In PHP / MySQL E-Commerce Store Production
Social Network Website Building
Image Upload / Photo Processing
CMS Software Programming
Mass Email Systems
Magic XML Data
Search Programming
Popular In JavaScript JSON Programming
Ajax Programming
Animating Elements
WYSIWYG Programming
Date/Time Programming
DOM Scripting
Object Reference
Popular In HTML Canvas Element
New Form Elements
Audio Element
Video Element
Drag and Drop
Event Handling
Element Grouping
Popular In CSS Custom Font Embedding
Dynamic Fit Backgrounds
Theatre Mode
Box Overlays
CSS Level 1 Properties
CSS Level 2 Properties
CSS Level 3 Properties
DevelopPHP.com is a growing educational system packed with video and written material that you can access 24/7 100% free. The focus here in 2014 is spread between five technologies: HTML, CSS, JavaScript, PHP and MySQL. Learn programming theory, database interaction, web design, animation, graphics editing, vector art, 3D modeling, and much more. The educational experience here is a hybrid one offering both high quality video tutorials and code libraries that grow more robust every day. The code libraries are being assembled so that developers can discover all of the building blocks of their favorite languages. The libraries coupled with high quality video tutorials will take you deep down the rabbit hole very quickly. You can also ask questions and get free advice at WebIntersect.com.
HTML5