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<?php $a=array(’a’=>’aaa’); $b=array(’b’=>’bbb’); if($a==$b) echo "С использованием == a=b<br>"; if($a===$b) echo "С использованием === a=b<br>";
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
Fatal error: Uncaught Error: Undefined constant "’a’" in /in/D45HD:2 Stack trace: #0 {main} thrown in /in/D45HD on line 2
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant ’a’ - assumed '’a’' (this will throw an Error in a future version of PHP) in /in/D45HD on line 2 Warning: Use of undefined constant ’aaa’ - assumed '’aaa’' (this will throw an Error in a future version of PHP) in /in/D45HD on line 2 Warning: Use of undefined constant ’b’ - assumed '’b’' (this will throw an Error in a future version of PHP) in /in/D45HD on line 3 Warning: Use of undefined constant ’bbb’ - assumed '’bbb’' (this will throw an Error in a future version of PHP) in /in/D45HD on line 3
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Use of undefined constant ’a’ - assumed '’a’' in /in/D45HD on line 2 Notice: Use of undefined constant ’aaa’ - assumed '’aaa’' in /in/D45HD on line 2 Notice: Use of undefined constant ’b’ - assumed '’b’' in /in/D45HD on line 3 Notice: Use of undefined constant ’bbb’ - assumed '’bbb’' in /in/D45HD on line 3

preferences:
274.66 ms | 403 KiB | 330 Q