6.6. foreach
General syntax:
foreach (VAR in ARRAY) STMT
The
foreach statement loops over each element of a named global array, assigning the current key to VAR. The array must not be modified within the statement. If you add a single plus (+) or minus (-) operator after the VAR or the ARRAY identifier, the iteration order will be sorted by the ascending or descending index or value.
The following statement behaves the same as the first example, except it is used when an array is indexed with a tuple of keys. Use a sorting suffix on at most one VAR or ARRAY identifier.
foreach ([VAR1, VAR2, ...] in ARRAY) STMT
The following statement is the same as the first example, except that the
limit keyword limits the number of loop iterations to EXP times. EXP is evaluated once at the beginning of the loop.
foreach (VAR in ARRAY limit EXP) STMT
