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  1. <?php
  2. $replacements = array();
  3. $replacements["var1"] = "New variable here";
  4. $regex = '~\{\[([^]]+)\]}~';
  5.  
  6. $string = "This is some string with {[var1]} in it";
  7.  
  8. $string = preg_replace_callback(
  9. 	$regex,
  10. 	function ($match) use ($replacements) {
  11. 		return $replacements[$match[1]];
  12. 	},
  13. 	$string);
  14. echo $string;
  15.  
Success #stdin #stdout 0.03s 52432KB
comments (?)
stdin 
Standard input is empty
stdout 
This is some string with New variable here in it
https://ideone.com/aAClj5
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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