Finding the instance of a specific string and first 2 letters of next string and switch their places in php -


i have specific string is: 

  <span style="color: green;">

i want function finds instance of string , further finds whether next string's first 2 characters

i have idea of searching character character, take long. there shorter solution it?

input:

  ab <span style="color: green;">  </strong>

output:

  ab </strong> <span style="color: green;">

the strong tag example, /b, /i, /li or other closing tag.

you can use preg_replace this, i.e.:

$myhtml = <<< lol ab <span style="color: green;">  </strong> lol;     $myhtml = preg_replace('%(<span style="color: green;">)(?:\s+)?(</.*?>)%i', '$2 $1', $myhtml);  echo $myhtml;  //ab </strong> <span style="color: green;">

it work tag comes after span.

demo:

http://sandbox.onlinephpfunctions.com/code/9dc934ece66856a92b041114140982dc822a6bec


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