3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $a; } class B extends A { public $b; } $a = new B(); $a->a = 0; $a->b = 1; $b = new B(); $b->a = 1; $b->b = 0; var_dump($a < $b); print_r($a, true); var_dump($a < $b); --EXPECT-- bool(false) bool(false)
Output for 7.1.0 - 7.1.21, 7.2.0 - 7.2.9
Parse error: syntax error, unexpected '--' (T_DEC), expecting '[' in /in/B21a5 on line 10
Process exited with code 255.
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176.21 ms | 1395 KiB | 39 Q