Когда eval зло в php? ⇐ Php

[Гость]

In all the years I have been developing in PHP, I have always heard that using

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eval()

is evil.

Considering the following code, wouldn't it make sense to use the second (and more elegant) option? If not, why?

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// $type is the result of an SQL statement, e.g. // SHOW COLUMNS FROM a_table LIKE 'a_column'; // hence you can be pretty sure about the consistency // of your string. $type = "enum('a','b','c')"; // option one $type_1 = preg_replace('#^enum\s*\(\s*\'|\'\s*\)\s*$#', '', $type); $result = preg_split('#\'\s*,\s*\'#', $type_1); // option two eval('$result = '.preg_replace('#^enum#','array', $type).';'); 

Источник: https://stackoverflow.com/questions/951 ... vil-in-php