Fatal error: Uncaught Error: Undefined constant "x" in /in/W1CKN:4
Stack trace:
#0 /in/W1CKN(7): square(42)
#1 {main}
thrown in /in/W1CKN on line 4
Process exited with code 255.
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /in/W1CKN on line 4
Warning: A non-numeric value encountered in /in/W1CKN on line 4
0
Output for 7.1.0 - 7.1.20
Notice: Use of undefined constant x - assumed 'x' in /in/W1CKN on line 4
Warning: A non-numeric value encountered in /in/W1CKN on line 4
0