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HEREDOC and NOWDOC

HEREDOC and NOWDOC are two robust ways in displaying contents in your document.

heredoc text behaves just like a double-quoted string. In a double-quoted string, the parser will greedily take as many tokens as possible to form a valid variable name when a dollar sign ($) is encountered.

heredoc syntax:

$str = <<<EOF
Your content here ...
EOF;

NOTE: EOF there is your identifier and can be named to anything.

Demonstrating the heredoc's power:

$greeting = 'Hello';
$str = <<<MYDOC
$greeting Philippines !!!
Mabuhay !!!
MYDOC;

echo $str;

Output:
Hello Philippines !!!
Mabuhay !!!

nowdoc as of PHP 5.3.0 behaves just like heredoc but without parsing the content. Meaning, if you want to display a block of static text then it's much faster to use nowdoc because a greedy string-parsing process will not be made.

nowdoc syntax:

$str = <<<'EOF'
Your content here ...
EOF;

IMPORTANT: Do not indent the closing identifier.
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