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strange one

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  strange one Shelly <sheldonlg@thevillages.net> - 2013-06-24 21:02 -0400
    Re: strange one Scott Johnson <noonehome@chalupasworld.com> - 2013-06-24 18:10 -0700
    Re: strange one Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2013-06-24 21:14 -0400
      Re: strange one Shelly <sheldonlg@thevillages.net> - 2013-06-24 21:18 -0400
      Re: strange one richard <noreply@example.com> - 2013-06-27 12:17 -0400

#9878 — strange one

My daughter also does php.  She has to fix up some awful code.  She came 
across something that I have never seen before.  It goes something like 
this:

$a .= <<<BLAH;

What is that <<<  ?

-- 
Shelly

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#9879

On 6/24/2013 6:02 PM, Shelly wrote:
> My daughter also does php.  She has to fix up some awful code.  She came
> across something that I have never seen before.  It goes something like
> this:
>
> $a .= <<<BLAH;
>
> What is that <<<  ?
>

It is a heredoc string.

Myself I use it quite often when I am formatting output text with 
variables for emails and such.

Here is the manual on it

http://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc

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#9880

On Monday 24 June 2013 21:02, in comp.lang.php, sheldonlg@thevillages.net
wrote:

> My daughter also does php.  She has to fix up some awful code.  She came
> across something that I have never seen before.  It goes something like
> this:
> 
> $a .= <<<BLAH;
> 
> What is that <<<  ?
 

It is the start of a "heredoc"
http://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc

Specifically, the word immediately adjacent to the right of the <<< (in your
case, the word BLAH) is taken as a sentinal, and all lines between the line
containing the start of the heredoc (the <<<BLAH line) and the first line
that contains the sentinal word are treated like a single string.

Thus
  <<<BLAH
this is a test
one two three
four five
six
BLAH;

is treated as a single string consisting of
  "this is a test\none two three\nfourfive\nsix\n"

-- 
Lew Pitcher
"In Skills, We Trust"

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#9881

Thank you Lew and Scott.

On 24/06/2013 21:14, Lew Pitcher wrote:
> On Monday 24 June 2013 21:02, in comp.lang.php, sheldonlg@thevillages.net
> wrote:
>
>> My daughter also does php.  She has to fix up some awful code.  She came
>> across something that I have never seen before.  It goes something like
>> this:
>>
>> $a .= <<<BLAH;
>>
>> What is that <<<  ?
>   
>
> It is the start of a "heredoc"
> http://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc
>
> Specifically, the word immediately adjacent to the right of the <<< (in your
> case, the word BLAH) is taken as a sentinal, and all lines between the line
> containing the start of the heredoc (the <<<BLAH line) and the first line
> that contains the sentinal word are treated like a single string.
>
> Thus
>    <<<BLAH
> this is a test
> one two three
> four five
> six
> BLAH;
>
> is treated as a single string consisting of
>    "this is a test\none two three\nfourfive\nsix\n"
>


-- 
Shelly

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#9901

On Mon, 24 Jun 2013 21:14:25 -0400, Lew Pitcher wrote:

> On Monday 24 June 2013 21:02, in comp.lang.php, sheldonlg@thevillages.net
> wrote:
> 
>> My daughter also does php.  She has to fix up some awful code.  She came
>> across something that I have never seen before.  It goes something like
>> this:
>> 
>> $a .= <<<BLAH;
>> 
>> What is that <<<  ?
>  
> 
> It is the start of a "heredoc"
> http://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc
> 
> Specifically, the word immediately adjacent to the right of the <<< (in your
> case, the word BLAH) is taken as a sentinal, and all lines between the line
> containing the start of the heredoc (the <<<BLAH line) and the first line
> that contains the sentinal word are treated like a single string.
> 
> Thus
>   <<<BLAH
> this is a test
> one two three
> four five
> six
> BLAH;
> 
> is treated as a single string consisting of
>   "this is a test\none two three\nfourfive\nsix\n"

thanks. I had read this about heredoc and was a tad confused on the
explanation. Your explanation clears it up.

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