|   | 
Scans string in arg 1 and replaces characters found in arg 2 with the character specified in arg 3. This function is case sensitive. Returns the result.
| Number | Type | Compulsory | Default | Description | 
|---|---|---|---|---|
| 1 | string | Yes | 
 | string to process | 
| 2 | string | Yes | 
 | characters to replace | 
| 3 | string | Yes | 
 | character to substitute | 
Return type: string
| 
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