15 lines
250 B
PHP
15 lines
250 B
PHP
function ackermann( $m , $n )
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{
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if ( $m==0 )
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{
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return $n + 1;
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}
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elseif ( $n==0 )
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{
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return ackermann( $m-1 , 1 );
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}
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return ackermann( $m-1, ackermann( $m , $n-1 ) );
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}
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echo ackermann( 3, 4 );
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// prints 125
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