Re: Codebabes: PHP
| From: | Kumar Saurabh Sinha | Date: | Tue, 29 Apr 2014 12:46:14 +0000 |
| Subject: | Re: Codebabes: PHP | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-323216@lists.php.net to get a copy of this message | ||
Difference between Language Construct & Functions:
*Language Constructs*
Constructs are elements that are built-into the language and, therefore,
follow special
rules. Perhaps the most common of them is the echo statement, which allows
you to write data to the script’s output:
echo 10; // will output 10
It’s important to understand that echo is not a function and, as such, it
does not have
a return value. If you need to output data through a function, you can use
print()
instead:
echo 10;print (10);
Another very important construct is die(), which is itself an alias of
exit(). It allows
you to terminate the script’s output and either output a string or return a
numeric
status to the process that called the script.
Thanks & Regards
*Kumar Saurabh Sinha*
+91-9971047719 | +91-8595436700
On Tue, Apr 29, 2014 at 6:03 PM, Tedd Sperling <tedd@sperling.com> wrote:
> On Apr 28, 2014, at 3:32 PM, Robert Cummings <robert@interjinn.com> wrote:
> > On 14-04-28 03:30 PM, Robert Cummings wrote:
> >> They should push the use of echo over print since it's a language
> >> construct and not a function thus it benefits from no function overhead.
> >>
> >> Cheers,
> >> Rob.
> >
> > I'd like to retract this comment :) Apparent print is not a function.
> Didn't it used to be?
> >
> > Cheers,
> > Rob.
> > --
>
> Nope, you can't retract it. :-)
>
> As for "print" being a function or construct, I dunno -- what's the
> difference?
>
> Cheers,
>
> tedd
>
>
> _______________
> tedd sperling
> tedd@sperling.com
>
>
>
>
>
>
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