Array
(
[_last_editor_used_jetpack] => Array
(
[0] => classic-editor
)
[_edit_lock] => Array
(
[0] => 1622405626:1
)
[_edit_last] => Array
(
[0] => 1
)
[ISBN] => Array
(
[0] => 9781538128954
)
[ASIN] => Array
(
[0] => 1538128950
)
[shop] => Array
(
[0] => "32392"|2021-05-15|£24.95
)
[site-sidebar-layout] => Array
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[0] => default
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[site-content-layout] => Array
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[0] => default
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[theme-transparent-header-meta] => Array
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[stick-header-meta] => Array
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)
[subtitle] => Array
(
[0] => An Introduction
)
)