如何使用preg_replace替换JSON值？ [重复]

Question

This question already has an answer here:

• My regex is matching too much. How do I make it stop? 5 answers

This is my JSON file sample.json

{
  "lbl_name":"Your name",
  "dynamic_name":"Hi, {{ name 1 }}, {{ name 2 }} and {{ name 3 }}"
}

and

$content = file_get_contents(sample.json);
$translate = json_decode$content, true);
$replaceContent = preg_replace('/\{{[^)]*\}}/', '%s', $translate);
print_r($replaceContent);

I am getting result

Array ( [lbl_name] => Your name [dynamic_name] => Hi %s ) 

I want result should be

Array ( [lbl_name] => Your name [dynamic_name] => Hi %s, %s and %s ) 

Thanks

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Answer 1

your regex is greedy, therefore trying to match the biggest match it can get.

use the ?-control character to make your pattern non-greedy, meaning it matches the smallest match it can get:

$data = "Hi, {{ name 1 }}, {{ name 2 }} and {{ name 3 }}"
echo preg_replace('/{{[^)]*?}}/', '%s', $data);
//prints Hi, %s, %s and %s