Get an array index in php

Question

How would I get an array position in php?

I have an array:

$arr = array("mp3", "wma");

and a for loop:

for($i = 0; $i < count($_FILES); $i++ ) {
{
    $_POST['extention_file'.$i] = pathinfo($_FILES[ 'file'.$i]['name'], PATHINFO_EXTENSION); // getting file extension here
    // i know this in java script: 
    //    flag_extFile = file.name.split(".").pop();
    //    flag_extFile = flag_extFile.toLowerCase();
    //    flag_extCheck = arr.indexOf(flag_extFile);
    // alert(flag_extCheck); we will get array index here.
    // how we can do the same functionality in php
}

How can I achieve this in php?

Edited: I need the result without using a foreach loop or any other loop. In JavaScript I could write arr.indexOf(flag_extFile);, I need the same thing in php.

how can i achieve this in php What does this refer to here? — asprin
– asprin, Commented Jun 16, 2014 at 4:57
if you can see the js code. the result will be if flag_extFile is mp3 then flag_extCheck value will be '0' — fedrick
– fedrick, Commented Jun 16, 2014 at 4:58

scrowler · Accepted Answer · 2014-06-16 04:57:27Z

5

You can use array_search() to return the array key:

for($i = 0; $i < count($_FILES); $i++ ) {
    $ext = pathinfo($_FILES[ 'file'.$i]['name'], PATHINFO_EXTENSION);
    $_POST['extention_file'.$i] = $ext;
    echo 'Key index is: ' . array_search($ext, $arr);
}

answered Jun 16, 2014 at 4:57

scrowler

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Niklesh_Chauhan · Accepted Answer · 2014-06-16 05:08:09Z

0

Here the solution

 $arr = array("mp3", "wma","cd");         

 echo array_search("cd",$arr);

answered Jun 16, 2014 at 5:08

Niklesh_Chauhan

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