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<?php echo 'var: '; var_dump(empty($a['foo']['bar'])); echo "\n\nexpr: "; var_dump(empty($a['foo']['bar'] > 0));
Output for 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
var: bool(true) expr: Warning: Undefined variable $a in /in/Icfer on line 6 Warning: Trying to access array offset on null in /in/Icfer on line 6 Warning: Trying to access array offset on null in /in/Icfer on line 6 bool(true)
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 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29
var: bool(true) expr: Warning: Undefined variable $a in /in/Icfer on line 6 Warning: Trying to access array offset on value of type null in /in/Icfer on line 6 Warning: Trying to access array offset on value of type null in /in/Icfer on line 6 bool(true)
Output for 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
var: bool(true) expr: Notice: Undefined variable: a in /in/Icfer on line 6 Notice: Trying to access array offset on value of type null in /in/Icfer on line 6 Notice: Trying to access array offset on value of type null in /in/Icfer on line 6 bool(true)
Output for 7.3.32, 7.4.26
var: bool(true) expr: bool(true)
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.3.33
var: bool(true) expr: Notice: Undefined variable: a in /in/Icfer on line 6 bool(true)

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