... PHP 4 ) create_function -- Create an anonymous (lambda-style) function . ... Example 1. ... function process($var1, $var2, $ farr ) { for ($f=0; $f count($ farr ); $f++) echo $ farr [$f]($var1,$var2). \n ; } // create a bunch of math functions $f1 = 'if ($a =0) { return b*a^2 = .$b*sqrt($a);} else { return false;}'; $f2 = return \ min(b^2+a, a^2,b) = \ .min(\$a*\$a+\$b,\$b*\$b+\$a); ; $f3 = 'if ($a 0 $b != 0) { return ln(a)/b = .log($a)/$b; } else { ...