在PHP中按组分组preg_replace

Question

I have a string

$cmd = "java -jar yuicompressor-2.4.8.jar --type *file_type* *original_file* > *new_file*";

And I want to replace like below

java -jar yuicompressor-2.4.8.jar --type css css/style.css > css/style.min.css

What I did is

$cmd = str_replace("*original_file*", $v, $cmd);
$cmd = str_replace("*new_file*", "$k", $cmd);
$cmd = str_replace("*file_type*", "css", $cmd);

I'm looking for a sort way like preg_replace. Any suggestion will be appreciated.

Answer 1

I don't see any reason why a regular expression should make sense here. Instead I suggest you simply use the str_replace function in its ability to make multiple replacements at once:

<?php
$subject = 'java -jar yuicompressor-2.4.8.jar --type *file_type* *original_file* > *new_file*';

$catalog = [
  '*file_type*' => 'css',
  '*original_file*' => 'css/style.css',
  '*new_file*' => 'css/style.min.css'

];

var_dump(str_replace(array_keys($catalog), $catalog, $subject));

The output obviously is:

string(78) "java -jar yuicompressor-2.4.8.jar --type css css/style.css > css/style.min.css"

This is a simple and robust approach and should be much more efficient than using regex based pattern matching.