rfc:heredoc-with-double-quotes

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rfc:heredoc-with-double-quotes [2008/03/28 13:14]
lstrojny
rfc:heredoc-with-double-quotes [2017/09/22 13:28] (current)
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-==== Abstract ====+===== Request for Comments: Allow HEREDOC syntax with double quotes ===== 
 + 
 +  * **Version:** 0.1.1 
 +  * **Date:** 2008-03-22 
 +  * **Author:** Lars Strojny 
 +  * **Status:** [[http://news.php.net/php.zend-engine.cvs/6597|Implemented in PHP 5.3]] 
 +  * **Votes:** (+6/-4) 
 +    * **Pro:** [[http://marc.info/?l=php-internals&m=120679140717702&w=2|Pierre A. Joye]], [[http://marc.info/?l=php-internals&m=120674698503890&w=2|Felipe Pena]] , [[http://marc.info/?l=php-internals&m=120636366616273&w=2|Marcus Boerger]], [[http://marc.info/?l=php-internals&m=120671376003536&w=2|Gwynne Raskind]], Christopher Jones, Lars Strojny 
 +    * **Contra:** [[http://marc.info/?l=php-internals&m=120623748226109&w=2|Steph Fox]], [[http://marc.info/?l=php-internals&m=120623999628496&w=2|Edward Z. Yang]], [[http://marc.info/?l=php-internals&m=120627311627368&w=2|Hannes Magnusson]], [[http://marc.info/?l=php-internals&m=120623665525308&w=2|Stanislav Malyshev]] 
 + 
 +==== Purpose ====
 In 5_3 we introduced NOWDOC in and it would be logical to allow a double quoted syntax sister of NOWDOC which acts as HEREDOC. The reason to do this is mainly consistency with with variable declarations: In 5_3 we introduced NOWDOC in and it would be logical to allow a double quoted syntax sister of NOWDOC which acts as HEREDOC. The reason to do this is mainly consistency with with variable declarations:
 <code php> <code php>
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 === Classic HEREDOC === === Classic HEREDOC ===
 <code php> <code php>
-$var = "Hello world";+$var = 'Hello world';
  
 $str = <<<LABEL $str = <<<LABEL
 $var $var
 LABEL; LABEL;
 +
 +echo $str; // gives: Hello world
 </code> </code>
-"$var" is evaluated+"$var" is interpreted.
  
 === NOWDOC === === NOWDOC ===
 <code php> <code php>
 +$var = 'Hello world';
 +
 $str = <<<'LABEL' $str = <<<'LABEL'
 $var $var
 LABEL; LABEL;
 +
 +echo $str; // gives: $var
 </code> </code>
-"$var" is taken literally+"$var" is taken literally.
  
 === Proposed HEREDOC === === Proposed HEREDOC ===
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 $var $var
 LABEL; LABEL;
 +
 +echo $str; // gives: Hello world
 </code> </code>
  
-"$var" would be intepreted.+"$var" would be interpreted.
rfc/heredoc-with-double-quotes.1206710055.txt.gz · Last modified: 2017/09/22 13:28 (external edit)