how to count arrays

mlewczuk

Hello,
I'm using array_intersect to compare some number of arrays. But, this function need to know what arrays need to be intersected, e.g: array_intersect($array1,$array2)...

My problem is that I don't know how many arrays will be created, each array is created by some script which ask database about something, and there can be two, three or more arrays... each array will have name like $array1, $array2, $array3.... And i don't know how to dynamically execute array_intersect to in result have e.g. this:

A) if 4 arrays : array_intersect($array1,$array2,$array3,$array4)
😎 if 3 arrays: array_intersect($array1,$array2,$array3)

Any sugestions ?

bastien

a counter that increments each time the DB is hit?

mlewczuk

No... I don't know how to dynamically execute array_intersect function, depends from number of arrays... for example: I have function, which will create four arrays, array1, array2, array3, array4... there is variable $counter = 4... and my question is how to execute array_intersect($array1...$array4)... but if $counter = 3 there should be only 3 arguments of this function... so in other words number of arguments in array_intersect function shoud depends from $counter value...

??? It's realy important... i coud do it using INTERSECT function in SQL but mySQL don't provide this function on this stage...