NYCPHP Meetup

[LK]

The reason I used literal string is because that's how it is used on the official PHP site at http://www.php.net/manual/en/function.eval.php

Also, in my haste I supplied a slightly incorrect example (apologies), it shoul be:

<?php
  $calc_str = '$x * $y';
  $x = 3;
  $y = 4;
  eval("echo \"$calc_str\";");
?>

Where the calc_str comes first at design time, while $x and $y are determined at run time. With this restriction using double quotes "$x * $y" in the proposed solution below will not work either.

Leo



----- Original Message ----
From: Jon Baer <jonbaer at jonbaer.com>
To: NYPHP Talk <talk at lists.nyphp.org>
Sent: Thursday, October 12, 2006 10:26:32 AM
Subject: Re: [nycphp-talk] Eval question


You are quoting w/ a literal string ... try ...


<?php
  $x = 3;
  $y = 4;
  $calc_str = "$x * $y";
  eval("echo $calc_str;");
?>


- Jon


On Oct 12, 2006, at 10:18 AM, LK wrote:


<?php
  $x = 3;
  $y = 4;
  $calc_str = '$x * $y';
  eval("echo \"$calc_str\";");
?>


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