3v4l.org

run code in 300+ PHP versions simultaneously
<?php function vztah ($sef, $callback) { echo "sef: " . $sef; $callback(); } $smradek = "SMRADEK"; vztah("JA", function(){ echo "Terka"; echo "$smradek"; });
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
sef: JATerka Warning: Undefined variable $smradek in /in/V1Tji on line 17
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
sef: JATerka Notice: Undefined variable: smradek in /in/V1Tji on line 17
Output for 7.3.32 - 7.3.33, 7.4.26
sef: JATerka
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/V1Tji on line 13
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/V1Tji on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/V1Tji on line 13
Process exited with code 255.
preferences:
295.09 ms | 401 KiB | 400 Q