Call MySql Select Query in 2 different php function - php

Question

Please help me with my problem.. can i call once Mysql Select Query from different function from two different function too... Sorry i don't know how to explain.. but below my sample what i want to archive..
I want use single query for 2 function.. so maybe i have to write code like below?
function sqlSelect ($db, $id, $id2) {
$sql = mysqli_query($db, "SELECT * FROM xxx WHERE id='$id' AND id2='$id2'");
$row = mysqli_num_rows($sql);
$field = mysqli_fetch_object($sql);
return $row;
}
but how to use $field inside 2 diff function?
function aaa ($a,$b,$c) {
if($row >= 1){
//Do something with $a $b and $c
//$reget field with $field['column'];
$field['column']; //???
}
return $result;
}
function bbb ($a,$b,$c) {
if($row >= 1){
//Do something with $a $b and $c
//get field with $field['column'];
$field['column']; //???
}
}
what i do right now is
function aaa ($db,$id,$id2,$a,$b,$c) {
$sql = mysqli_query($db, "SELECT * FROM xxx WHERE id='$id' AND id2='$id2'");
$row = mysqli_num_rows($sql);
$field = mysqli_fetch_object($sql);
if($row >= 1){
//Do something with $a $b and $c
//get field with $field['column'];
}
}
function bbb ($db,$id,$id2,$a,$b,$c) {
$sql = mysqli_query($db, "SELECT * FROM xxx WHERE id='$id' AND id2='$id2'");
$row = mysqli_num_rows($sql);
$field = mysqli_fetch_object($sql);
if($row >= 1){
//Do something with $a $b and $c
//get field with $field['column'];
}
}
But if i use what i write and code right now i think it's have to call same query twice. I cannot use query outside function so i have to write query on each function but i want to just write query once and can use in two different function..
Sorry for stupid explanation..
Thank you for help

Answer 1

One implementation can be as follow by passing an array as argument,
<?php
$arg['db']="database";
$arg['tabe']="table";
$arg['search']['id1']="id1";
$arg['search']['id2']="id2";
$arg['do_something']['a']="a";
$arg['do_something']['b']="b";
$arg['do_something']['c']="c";
function searchAndDoSomethingAndReturnResult($arg)
{
$return = NULL;
$query="SELECT * FROM ".$arg['table'];
$flag=false;
foreach($arg['search'] as $key=>$value)
{
if($flag)
$query.=" AND ";
else
$flag=true;
$query.= $key." = '".$value."' ";
}
$row = mysqli_num_rows($query);
$field = mysqli_fetch_object($query);
if($row >= 1)
{
foreach($arg['do_something'] as $job=>$value)
{
// $return[] = "some result"
// do something
}
}
return $return;
}
?>
let me know if this solve your problem

Answer 2

You can either pass in the $field variable as a function argument
<?
$field = ...;
function sql1($field,...,...){
// Use $field here
}
function sql2($field,...,...){
// Use $field here
}
?>
Alternatively, you can use the global keyword to access variables from outside of the function
<?
$field = ...;
function sql1(){
global $field;
// Use $field here
}
function sql2(){
global $field;
// Use $field here
}
?>