# DOMDocument->relaxNGValidateSource()

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DOMDocument->relaxNGValidateSource() — Performs relaxNG validation on the document

### Description

DOMDocument
bool relaxNGValidateSource ( string `$source` )

Performs » relaxNG validation on the document based on the given RNG source.

### Parameters

`source`

  A string containing the RNG schema.

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

### See Also

- DOMDocument->relaxNGValidate()
- DOMDocument->schemaValidate()
- DOMDocument->schemaValidateSource()
- DOMDocument->validate()