[FX.php List] Risks in multi-line echo statement?

[Joel Shapiro]

Thanks Chris, that's great!  I'd never heard of heredoc.

looking at its php.net documentation lead me to the echo()  
documentation, which includes:

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;

(so you're right, you don't need to store the heredoc in a variable)

it also includes:

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

(which I guess answers my original question)

Best,
-Joel


On Oct 25, 2006, at 11:08 AM, Chris Hansen wrote:

> Joel,
>
> Use heredoc syntax.  This would like like the following:
>
> $myText = <<<MY_TEXT
> <table>
> 	<tr>
> 		<td align="right">Field A: </td>
> 		<td>{$value['FieldA'][0]}</td>
> 	</tr>
> 	<tr>
> 		<td align="right">Field B: </td>
> 		<td>{$value['FieldB'][0]}</td>
> 	</tr>
> </table>
> MY_TEXT;
>
> echo($myText);
>
> Note that like double quotes, your variables can go right inside  
> the block.  Also, heredoc is designed to work with multi-line  
> blocks of text.  The PHP online docs have more details:
>
> http://www.php.net/manual/en/ 
> language.types.string.php#language.types.string.syntax.heredoc
>
> Lots of folks aren't aware of this string syntax, but it's a gem in  
> my opinion.  (You may be able to echo the heredoc block directly  
> rather than storing it first -- I don't use it that way though.)  HTH
>
> --Chris Hansen
>   FileMaker 7 Certified Developer
>   Creator of FX.php
>   "The best way from FileMaker to the Web."
>   www.iViking.org
>
>
> On Oct 25, 2006, at 11:51 AM, Joel Shapiro wrote:
>
>> Hi all
>>
>> Quick php formatting question:
>>
>> Are there any risks to using a single echo statement with multiple  
>> lines inside the quotes, as follows?
>>
>> echo ' // START ECHO
>> <table>
>> 	<tr>
>> 		<td align="right">Field A: </td>
>> 		<td>'.$value['FieldA'][0].'</td>
>> 	</tr>	
>> 	<tr>
>> 		<td align="right">Field B: </td>
>> 		<td>'.$value['FieldB'][0].'</td>
>> 	</tr>
>> </table>
>> '; //  END ECHO
>>
>> I think it was on this list where people once discussed various  
>> ways of switching between html and php code.  This way *seems* to  
>> be a way to keep the html looking like html (both in the initial  
>> code, and in the browser's view source), but without needing lots  
>> of echo statements (1 per line), or using "\n", or having to use <? 
>> php echo $value['FieldA'][0]; ?> each time within straight html.   
>> I've looked elsewhere online and haven't found other examples of  
>> this, so I'm wondering if there's a good reason for that.
>>
>> TIA,
>> -Joel
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>
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