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run code in 300+ PHP versions simultaneously
<?php $values = array( 'a < b', 'a< b', 'a <b', 'a <b d> c' ); foreach ($values as $value) { var_dump(strip_tags($value)); }
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.25, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(5) "a < b" string(4) "a< b" string(2) "a " string(4) "a c"
Output for 4.3.0 - 4.3.1
string(2) "a " string(1) "a" string(2) "a " string(4) "a c"

preferences:
237.21 ms | 401 KiB | 353 Q