While

Loop until condition is false

Synopsis

While(condition)

Description

Execution loops between a While and an EndWhile statement, until the condition specified in the While evaluates to false. The condition is evaluated once per loop, at the beginning.

Example

 exten => 123,1,Answer
 exten => 123,n,Set(i=1)
 exten => 123,n,While($[${i} < 5])
 exten => 123,n,SayNumber(${i})
 exten => 123,n,Set(i=$[${i} + 1])
 exten => 123,n,EndWhile

Notes

• While / EndWhile supports nesting. That is, you can have more than one set of While / EndWhile executing for the same channel at once.
• If the While condition initially evaluates to false, Asterisk will jump down to after the matching EndWhile.
• I see in the Asterisk subversion trunk there is yet another loop control modifier, ContinueWhile

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