1--TEST-- 2Bug #50158 (FILTER_VALIDATE_EMAIL fails with valid addresses containing = or ?) 3--EXTENSIONS-- 4filter 5--FILE-- 6<?php 7 8$email_address = "test=mail@example.com"; 9var_dump(filter_var($email_address, FILTER_VALIDATE_EMAIL)); 10 11$email_address = "test-mail@example.com"; 12var_dump(filter_var($email_address, FILTER_VALIDATE_EMAIL)); 13 14$email_address = "test+mail@example.com"; 15var_dump(filter_var($email_address, FILTER_VALIDATE_EMAIL)); 16 17$email_address = "test?mail@example.com"; 18var_dump(filter_var($email_address, FILTER_VALIDATE_EMAIL)); 19 20?> 21--EXPECT-- 22string(21) "test=mail@example.com" 23string(21) "test-mail@example.com" 24string(21) "test+mail@example.com" 25string(21) "test?mail@example.com" 26