3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function bar() { return ""; } } $ts = microtime(true); for ($i=1; $i<=10000; $i++) { $c = new Foo(); echo $c->bar(); unset ($c); } $tt = microtime(true); unset($ts, $tt); $t1 = $tt-$ts; echo "Variable Instantiation takes {$t1} seconds\n"; $ts = microtime(true); for ($i=1; $i<=10000; $i++) { echo (new Foo())->bar(); } $tt = microtime(true); unset($ts, $tt); $t2 = $tt-$ts; echo "Magic Instantiation takes {$t2} seconds\n"; echo "\n";
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.0
Notice: Undefined variable: tt in /in/aMbmj on line 17 Notice: Undefined variable: ts in /in/aMbmj on line 17 Variable Instantiation takes 0 seconds Notice: Undefined variable: tt in /in/aMbmj on line 27 Notice: Undefined variable: ts in /in/aMbmj on line 27 Magic Instantiation takes 0 seconds
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Notice: Undefined variable: ts in /in/aMbmj on line 17 Notice: Undefined variable: tt in /in/aMbmj on line 17 Variable Instantiation takes 0 seconds Notice: Undefined variable: ts in /in/aMbmj on line 27 Notice: Undefined variable: tt in /in/aMbmj on line 27 Magic Instantiation takes 0 seconds
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_OBJECT_OPERATOR, expecting ',' or ';' in /in/aMbmj on line 22
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_OBJECT_OPERATOR, expecting ',' or ';' in /in/aMbmj on line 22
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/aMbmj on line 3
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
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/aMbmj on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/aMbmj on line 3
Process exited with code 255.
preferences:
122.67 ms | 401 KiB | 175 Q