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<?php $a = json_decode('{"7":"value1","8":"value2","9":"value3","13":"value4"}',TRUE); var_export($a); var_dump(isset($a[7]), isset($a['7']));
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array ( 7 => 'value1', 8 => 'value2', 9 => 'value3', 13 => 'value4', )bool(true) bool(true)
preferences:
97.05 ms | 1397 KiB | 4 Q