Php binary algorithm search

? * ** Binary algorithm search * @ paramarray $ array the minimum subscript of the array * @ paramint $ min_key array * @ paramint $ max_key array * @ parammixed $ value to search * @ returnboolean * functionbin_search ($ array, $ min_key, $ max_key, $ value) {if (

? /*** Binary algorithm search * @ param array $ array the array to be searched * @ param int $ minimum subscript of the min_key array * @ param int $ maximum subscript of the max_key array * @ param mixed $ value * @ return boolean */function bin_search ($ array, $ min_key, $ max_key, $ value) {if (

/**

* Binary algorithm search

* @ Param array $ array the array to be searched

* @ Param int $ minimum subscript of the min_key Array

* @ Param int $ maximum subscript of the max_key Array

* @ Param mixed $ value the value to be searched

* @ Return boolean

*/

Function bin_search ($ array, $ min_key, $ max_key, $ value ){

If ($ min_key <= $ max_key ){

$ Key = intval ($ min_key + $ max_key)/2 );

If ($ array [$ key] ==$ value ){

Return true;

} Elseif ($ value <$ array [$ key]) {

Return bin_search ($ array, $ min_key, $ key-1, $ value );

} Else {

Return bin_search ($ array, $ key + 1, $ max_key, $ value );

}

} Else {

Return false;

}

}

// Now let's test this function.

$ Array = array );

$ Value = 45;

$ Min_key = min (array_keys ($ array ));

$ Max_key = max (array_keys ($ array ));

If (bin_search ($ array, $ min_key, $ max_key, $ value )){

Echo "Search Success! ";

} Else {

Echo "Search Faliure! ";

}
?>