<?php echo "Numeric strings will be converted into an integer\n"; var_dump(array( -1 => -1, 1 => 1, '1' => '1', '-1' => '-1', '1.1' => '1.1', 's1' => 's1', )); echo "Floating point numbers will be converted into an integer:\n": var_dump(array( -1 => -1, 0 => 0, 1 => 1, -1.9 => -1.9, 0.9 => 0.9, 1.9 => 1.9 )); echo "Booleans will be converted into an integer:\n"; var_dump(array( 0 => 0, 1 => 1, true => true, false => false, )); echo "NULL will be converted into an empty string:\n"; var_dump(array( '' => '', null => null, ));
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