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Manual: echo
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echo

(unknown)

echo -- Output one or more strings.

Description

echo (string arg1, string [argn]...)

Outputs all parameters.

Echo() is not actually a function (it is a language construct) so you are not required to use parantheses with it.

Esempio 1. Echo() example


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.";

Nota: In fact, if you want to pass more than one parameter to echo, you must not enclose the parameters within parentheses.

See also: print(), printf(), and flush().


User Contributed Notes: echo

slanders@mobsec.com
29-Apr-1999 10:11
To echo an Array of Arrays:

A two-dimensional array is one array nested inside of another
array. I assigned the two-dimensional array using the following format:



$ref = array(

"10" => array(1,2),

"11" => array(3,4),

"12" => array("john", "fred")

);



The array $ref contains the arrays $10, $11, $12 as the three
elements. The nested arrays need to be named by sequential numbers
because when called, one references their name, not their element number
within the outer array $ref. In order to print these nested arrays, I used a
double for loop and an echo statement. This is done in the following manner:



for($i = 10; $i <= 12; $i++) {

for($j = 0; $j <= 1; $j++) {

echo $ref[$i][$j] . "\n";

}

}



This will print 1234johnfred to the screen.

david@audiogalaxy.com
18-Feb-2000 01:09
As alluded to in sessions, <?= $foo ?> appears to be a shortcut for <? echo($foo); ?> analogous <%= $foo %>.

ckernan@tibus.net
18-May-2000 03:51
Use a period to concatenate text and variables e.g.

<?
echo "this color is " . $color . ", my favorite color";
?>

philip@theprojects.org
29-Jun-2000 02:48
To use quotes, use backslashes like this:


echo "i want to \"quote\" stuff"


a useful string tutorial is :


http://www.zend.com/zend/tut/using-strings.php




monman_us@yahoo.com
08-Jul-2000 04:51
To echo text and variables on one line, this seems like the easiest way:

$x = "This works! I've tried it";
echo "x is: $x";

You can also include that straight into the HTML, like this:
<html><body>
<?php
$x = "This also works!";
?>
x is: $x
</body></html>



powerlord@vgmusic.com
28-Jul-2000 05:53
Multiple word values require quotes around them. So, in a form try this:


<input type="hidden" value="<?php echo $book; ?>">


If it's in a URL, try this:


&title=<?php echo rawurlencode($book); ?>)




dewcansamc@excite.com
03-Aug-2000 08:22
quick note if you want to substitute the '=' for echo. The '=' must be connected to the open Php tag. Anything else won't work.
this works:
<?=$str;?>
this doesn't:
<? = $str; ?>
also use this alone. Multiple echos use 'echo'
alright i know that this seems trivial but, i sure could NOT find this documented anywhere else

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