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<?php $♥ = "love"; $heart = "heart"; $pat = "[♥]+"; $sub = "heart"; $code = mb_ereg_replace( $pat, $sub, "I \$♥ PHP" ); var_dump($code); eval("\$code = \"$code\";"); echo $code;
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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(12) "I $heart PHP" I heart PHP
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Warning: mb_ereg_replace(): mbregex compile err: premature end of char-class in /in/5ecUZ on line 6 bool(false)
Output for 4.3.4 - 4.3.11, 4.4.0 - 4.4.9
Warning: mb_ereg_replace(): mbregex compile err: premature end of regular expression in /in/5ecUZ on line 6 bool(false)
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_ereg_replace() in /in/5ecUZ on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_ereg_replace() in /in/5ecUZ on line 6

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