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<?php $f = [ 'foo' => NULL, ]; print_r(count($f['foo'])); print_r(count($f['bar']));
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /in/lt6dR:7 Stack trace: #0 {main} thrown in /in/lt6dR on line 7
Process exited with code 255.
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.0.0 - 8.0.9
Fatal error: Uncaught TypeError: count(): Argument #1 ($var) must be of type Countable|array, null given in /in/lt6dR:7 Stack trace: #0 {main} thrown in /in/lt6dR on line 7
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Warning: count(): Parameter must be an array or an object that implements Countable in /in/lt6dR on line 7 0 Notice: Undefined index: bar in /in/lt6dR on line 9 Warning: count(): Parameter must be an array or an object that implements Countable in /in/lt6dR on line 9 0
Output for 7.3.32 - 7.3.33
Warning: count(): Parameter must be an array or an object that implements Countable in /in/lt6dR on line 7 0 Warning: count(): Parameter must be an array or an object that implements Countable in /in/lt6dR on line 9 0
Output for 5.6.0 - 5.6.26, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
0 Notice: Undefined index: bar in /in/lt6dR on line 9 0

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