echo - PHP

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echo "Hello World";

echo "This spans
multiple lines. The newlines will be
output as well";

echo "This spans\nmultiple lines. The newlines will be\noutput as well.";

echo "Escaping characters is done \"Like this\".";

// You can use variables inside of an echo statement
$foo = "foobar";
$bar = "barbaz";

echo "foo is $foo"; // foo is foobar

// You can also use arrays
$baz = array("value" => "foo");

echo "this is {$baz['value']} !"; // this is foo !

// Using single quotes will print the variable name, not the value
echo 'foo is $foo'; // foo is $foo

// If you are not using any other characters, you can just echo variables
echo $foo;          // foobar
echo $foo,$bar;     // foobarbarbaz

// Some people prefer passing multiple parameters to echo over concatenation.
echo 'This ', 'string ', 'was ', 'made ', 'with multiple parameters.', chr(10);
echo 'This ' . 'string ' . 'was ' . 'made ' . 'with concatenation.' . "\n";

echo <<<END
This uses the "here document" syntax to output
multiple lines with $variable interpolation. Note
that the here document terminator must appear on a
line with just a semicolon. no extra whitespace!

// Because echo does not behave like a function, the following code is invalid.
($some_var) ? echo 'true' : echo 'false';

// However, the following examples will work:
($some_var) ? print 'true' : print 'false'; // print is also a construct, but
                                            // it behaves like a function, so
                                            // it may be used in this context.
echo $some_var ? 'true': 'false'; // changing the statement around

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echo "Olá Mundo";
Olá Mundo

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echo "php\n php2\nphp3";
php php2 php3

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$x1 = "php";
$x2 = "php2";

echo "php3 é $x2";
php3 é php2

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$teste = array("php" => "php2");
echo "php4 é {$teste['php']} !";
php4 é php2 !

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echo 'php ', 'php2 ', 'php3 ', 'php4 ', 'php5', chr(10);
echo "<br>";
echo 'php ' . 'php2 ' . 'php3 ' . 'php4 ' . 'php5' . "\n";
php php2 php3 php4 php5
php php2 php3 php4 php5

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$teste3 = "php3 php4";
echo <<<END
php "php2" $teste3
php "php2" php3 php4
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