3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo PHP_VERSION; var_dump(strval(null));
based on ES2tK
Output for 7.1.0
7.1.0string(0) ""
Output for 7.0.14
7.0.14string(0) ""
Output for 7.0.6
7.0.6string(0) ""
Output for 7.0.5
7.0.5string(0) ""
Output for 7.0.4
7.0.4string(0) ""
Output for 7.0.3
7.0.3string(0) ""
Output for 7.0.2
7.0.2string(0) ""
Output for 7.0.1
7.0.1string(0) ""
Output for 7.0.0
7.0.0string(0) ""
Output for 5.6.28
5.6.28string(0) ""
Output for 5.6.21
5.6.21string(0) ""
Output for 5.6.20
5.6.20string(0) ""
Output for 5.6.19
5.6.19string(0) ""
Output for 5.6.18
5.6.18string(0) ""
Output for 5.6.17
5.6.17string(0) ""
Output for 5.6.16
5.6.16string(0) ""
Output for 5.6.15
5.6.15string(0) ""
Output for 5.6.14
5.6.14string(0) ""
Output for 5.6.13
5.6.13string(0) ""
Output for 5.6.12
5.6.12string(0) ""
Output for 5.6.11
5.6.11string(0) ""
Output for 5.6.10
5.6.10string(0) ""
Output for 5.6.9
5.6.9string(0) ""
Output for 5.6.8
5.6.8string(0) ""
Output for 5.6.7
5.6.7string(0) ""
Output for 5.5.35
5.5.35string(0) ""
Output for 5.5.34
5.5.34string(0) ""
Output for 5.5.33
5.5.33string(0) ""
Output for 5.5.32
5.5.32string(0) ""
Output for 5.5.31
5.5.31string(0) ""
Output for 5.5.30
5.5.30string(0) ""
Output for 5.5.29
5.5.29string(0) ""
Output for 5.5.28
5.5.28string(0) ""
Output for 5.5.27
5.5.27string(0) ""
Output for 5.5.26
5.5.26string(0) ""
Output for 5.5.25
5.5.25string(0) ""
Output for 5.5.24
5.5.24string(0) ""
Output for 5.4.45
5.4.45string(0) ""
Output for 5.4.44
5.4.44string(0) ""
Output for 5.4.43
5.4.43string(0) ""
Output for 5.4.42
5.4.42string(0) ""
Output for 5.4.41
5.4.41string(0) ""
Output for 5.4.40
5.4.40string(0) ""
Output for 5.4.39
5.4.39string(0) ""
Output for 5.4.38
5.4.38string(0) ""
Output for 5.4.37
5.4.37string(0) ""
Output for 5.4.36
5.4.36string(0) ""
Output for 5.4.35
5.4.35string(0) ""
Output for 5.4.34
5.4.34string(0) ""
Output for 5.4.32
5.4.32string(0) ""
Output for 5.4.31
5.4.31string(0) ""
Output for 5.4.30
5.4.30string(0) ""
Output for 5.4.29
5.4.29string(0) ""
Output for 5.4.28
5.4.28string(0) ""
Output for 5.4.27
5.4.27string(0) ""
Output for 5.4.26
5.4.26string(0) ""
Output for 5.4.25
5.4.25string(0) ""
Output for 5.4.24
5.4.24string(0) ""
Output for 5.4.23
5.4.23string(0) ""
Output for 5.4.22
5.4.22string(0) ""
Output for 5.4.21
5.4.21string(0) ""
Output for 5.4.20
5.4.20string(0) ""
Output for 5.4.19
5.4.19string(0) ""
Output for 5.4.18
5.4.18string(0) ""
Output for 5.4.17
5.4.17string(0) ""
Output for 5.4.16
5.4.16string(0) ""
Output for 5.4.15
5.4.15string(0) ""
Output for 5.4.14
5.4.14string(0) ""
Output for 5.4.13
5.4.13string(0) ""
Output for 5.4.12
5.4.12string(0) ""
Output for 5.4.11
5.4.11string(0) ""
Output for 5.4.10
5.4.10string(0) ""
Output for 5.4.9
5.4.9string(0) ""
Output for 5.4.8
5.4.8string(0) ""
Output for 5.4.7
5.4.7string(0) ""
Output for 5.4.6
5.4.6string(0) ""
Output for 5.4.5
5.4.5string(0) ""
Output for 5.4.4
5.4.4string(0) ""
Output for 5.4.3
5.4.3string(0) ""
Output for 5.4.2
5.4.2string(0) ""
Output for 5.4.1
5.4.1string(0) ""
Output for 5.4.0
5.4.0string(0) ""
Output for 5.3.29
5.3.29string(0) ""
Output for 5.3.28
5.3.28string(0) ""
Output for 5.3.27
5.3.27string(0) ""
Output for 5.3.26
5.3.26string(0) ""
Output for 5.3.25
5.3.25string(0) ""
Output for 5.3.24
5.3.24string(0) ""
Output for 5.3.23
5.3.23string(0) ""
Output for 5.3.22
5.3.22string(0) ""
Output for 5.3.21
5.3.21string(0) ""
Output for 5.3.20
5.3.20string(0) ""
Output for 5.3.19
5.3.19string(0) ""
Output for 5.3.18
5.3.18string(0) ""
Output for 5.3.17
5.3.17string(0) ""
Output for 5.3.16
5.3.16string(0) ""
Output for 5.3.15
5.3.15string(0) ""
Output for 5.3.14
5.3.14string(0) ""
Output for 5.3.13
5.3.13string(0) ""
Output for 5.3.12
5.3.12string(0) ""
Output for 5.3.11
5.3.11string(0) ""
Output for 5.3.10
5.3.10string(0) ""
Output for 5.3.9
5.3.9string(0) ""
Output for 5.3.8
5.3.8string(0) ""
Output for 5.3.7
5.3.7string(0) ""
Output for 5.3.6
5.3.6string(0) ""
Output for 5.3.5
5.3.5string(0) ""
Output for 5.3.4
5.3.4string(0) ""
Output for 5.3.3
5.3.3string(0) ""
Output for 5.3.2
5.3.2string(0) ""
Output for 5.3.1
5.3.1string(0) ""
Output for 5.3.0
5.3.0string(0) ""
Output for 5.2.17
5.2.17string(0) ""
Output for 5.2.16
5.2.16string(0) ""
Output for 5.2.15
5.2.15string(0) ""
Output for 5.2.14
5.2.14string(0) ""
Output for 5.2.13
5.2.13string(0) ""
Output for 5.2.12
5.2.12string(0) ""
Output for 5.2.11
5.2.11string(0) ""
Output for 5.2.10
5.2.10string(0) ""
Output for 5.2.9
5.2.9string(0) ""
Output for 5.2.8
5.2.8string(0) ""
Output for 5.2.7
5.2.7string(0) ""
Output for 5.2.6
5.2.6string(0) ""
Output for 5.2.5
5.2.5string(0) ""
Output for 5.2.4
5.2.4string(0) ""
Output for 5.2.3
5.2.3string(0) ""
Output for 5.2.2
5.2.2string(0) ""
Output for 5.2.1
5.2.1string(0) ""
Output for 5.2.0
5.2.0string(0) ""
Output for 5.1.6
5.1.6string(0) ""
Output for 5.1.5
5.1.5string(0) ""
Output for 5.1.4
5.1.4string(0) ""
Output for 5.1.3
5.1.3string(0) ""
Output for 5.1.2
5.1.2string(0) ""
Output for 5.1.1
5.1.1string(0) ""
Output for 5.1.0
5.1.0string(0) ""
Output for 5.0.5
5.0.5string(0) ""
Output for 5.0.4
5.0.4string(0) ""
Output for 5.0.3
5.0.3string(0) ""
Output for 5.0.2
5.0.2string(0) ""
Output for 5.0.1
5.0.1string(0) ""
Output for 5.0.0
5.0.0string(0) ""
Output for 4.4.9
4.4.9string(0) ""
Output for 4.4.8
4.4.8string(0) ""
Output for 4.4.7
4.4.7string(0) ""
Output for 4.4.6
4.4.6string(0) ""
Output for 4.4.5
4.4.5string(0) ""
Output for 4.4.4
4.4.4string(0) ""
Output for 4.4.3
4.4.3string(0) ""
Output for 4.4.2
4.4.2string(0) ""
Output for 4.4.1
4.4.1string(0) ""
Output for 4.4.0
4.4.0string(0) ""
Output for 4.3.11
4.3.11string(0) ""
Output for 4.3.10
4.3.10string(0) ""
Output for 4.3.9
4.3.9string(0) ""
Output for 4.3.8
4.3.8string(0) ""
Output for 4.3.7
4.3.7string(0) ""
Output for 4.3.6
4.3.6string(0) ""
Output for 4.3.5
4.3.5string(0) ""
Output for 4.3.4
4.3.4string(0) ""
Output for 4.3.3
4.3.3string(0) ""
Output for 4.3.2
4.3.2string(0) ""
Output for 4.3.1
4.3.1string(0) ""
Output for 4.3.0
4.3.0string(0) ""