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PHP Fundamentals

PHP Fundamentals

Basic Syntax

All PHP code must be enclosed inside <? and ?> closing tags
echo outputs text.

<? 
$a=1;
echo $a;
 ?>

will display the value of $a which is 1

<? 
$a=5;
echo "Display this text $a=$a";
 ?>

will display whatever is between the double quotes including the value of variables. Notice the used in the statement. The will escape the next character. Using a before special characters like " $ display the character. Using

echo 'Displays this text $a'; Displays everything inside single quotes. Variables are not interpreted. The example above displays as Displays this text $a.

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