echo

void echo ( string $arg1 [, string $... ] )

I?have?<?=$foo?>?foo.

<?php
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

//?Strings?can?either?be?passed?individually?as?multiple?arguments?or
//?concatenated?together?and?passed?as?a?single?argument
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!
END;

//?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
?>

<?php
echo?"Sum:?",?1?+?2;
echo?"Hello?",?isset($name)???$name?:?"John?Doe",?"!";

<?php
echo?'Sum:?'?.?(1?+?2);
echo?'Hello?'?.?(isset($name)???$name?:?'John?Doe')?.?'!';