1<documentation title="Default Values in Function Declarations"> 2 <standard> 3 <![CDATA[ 4 Arguments with default values go at the end of the argument list. 5 ]]> 6 </standard> 7 <code_comparison> 8 <code title="Valid: argument with default value at end of declaration"> 9 <![CDATA[ 10function connect($dsn, <em>$persistent = false</em>) 11{ 12 ... 13} 14 ]]> 15 </code> 16 <code title="Invalid: argument with default value at start of declaration"> 17 <![CDATA[ 18function connect(<em>$persistent = false</em>, $dsn) 19{ 20 ... 21} 22 ]]> 23 </code> 24 </code_comparison> 25</documentation> 26