1--TEST-- 2Closure 048: Use in preg_replace_callback() using variables by reference 3--FILE-- 4<?php 5 6function replace_variables($text, $params) { 7 8 $c = function($matches) use (&$params, &$text) { 9 $text = preg_replace( '/(\?)/', array_shift( $params ), $text, 1 ); 10 }; 11 12 preg_replace_callback( '/(\?)/', $c, $text ); 13 14 return $text; 15} 16 17echo replace_variables('a=?', array('0')) . "\n"; 18echo replace_variables('a=?, b=?', array('0', '1')) . "\n"; 19echo replace_variables('a=?, b=?, c=?', array('0', '1', '2')) . "\n"; 20echo "Done\n"; 21?> 22--EXPECT-- 23a=0 24a=0, b=1 25a=0, b=1, c=2 26Done 27
