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Fix filter_input() return value documentation #5381

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Fix filter_input() return value documentation #5381

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11 changes: 6 additions & 5 deletions reference/filter/functions/filter-input.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -57,11 +57,12 @@
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<simpara>
On success returns the filtered variable.
If the variable is not set &false; is returned.
On failure &false; is returned,
unless the <constant>FILTER_NULL_ON_FAILURE</constant> flag is used,
in which case &null; is returned.
Value of the requested variable on success,
&false; if the filter fails,
or &null; if the <parameter>var_name</parameter> variable is not set.
If the flag <constant>FILTER_NULL_ON_FAILURE</constant> is used,
it returns &false; if the variable is not set
and &null; if the filter fails.
</simpara>
</refsect1>

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