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| en:create:functions:dbget [24.01.2015 14:06] – [Return Value] alexander.ritter | en:create:functions:dbget [29.01.2025 13:29] (current) – robin.bodenberger |
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| ====== dbGet() ====== | ====== dbGet() ====== |
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| Data can be retrieved from the **Database for Contents** with ''dbGet()''. More details can be found in the chapters [[:en:create:databank|Database for Contents]] and ''[[:en:create:functions:dbset|dbSet()]]''. | ''dbGet()'' can be used to retrieve data from the **content database**. For details and examples, see [[:en:create:databank|Using data fragments in PHP code]] and ''[[:en:create:functions:dbset|dbSet()]]''. |
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| ''array|false **dbGet**(string //key//)'' | ''array|false **dbGet**(string //key//)'' |
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| * //key//\\ The database key for which data is stored | * //key//\\ The database key for which data has been stored. |
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| | **Important:** ''dbGet()'' can only retrieve data that has been imported as a table or entered into the content database using ''[[en:create:functions:dbset]]''. The command cannot retrieve complex data structures that have been stored using ''[[en:create:functions:dbstore|dbStore()]]''. Use ''[[en:create:functions:dbretrieve|dbRetrieve()]]'' for that. |
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| | **Important:** The content database can store content in different language versions ([[:en:create:multilang]]) for the same key. If several language versions exist for a key, ''dbGet()'' returns the entry for the current interview language. |
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| | ===== Return value ===== |
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| ===== Return Value ===== | If the specified //key// exists in the database, the function __always__ returns an [[:en:create:array|Array]] -- even if only one value was stored for the //key//. |
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| If the specified //key// exists in the database, the function always returns an array -- even if only one value was stored for the //key//. | If the specified //key// is not found in the database, the function returns ''false''. In debug mode ({{:button.debug.gif?nolink|Start questionnaire in debug mode}}), but not in the finished questionnaire, a warning is also displayed if the key was not found. |
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| If the specified //key// cannot be found in the database, the function returns ''false''. In debug mode (({{:button.debug.gif?nolink|Start questionnaire in debug mode}}) (not in finished questionnaires), a warning will also be displayed if the key cannot be found. | |
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