array_keys

[ted_chou12]

the result of this function gives:
[code]
Array ( [0] => 1 )
[/code]
where 0 represents the result number, and 1 represents the number of the element in the array, what would i have to do to just get the value "1" instead of a whole Array formation result?
Thanks
Ted

[Orio]

You cant make array_keys return a string/int instead of an array.
Can you tell us what you are trying to do exactly?

Orio.

[ted_chou12]

this is my whole code:
[code]
<?php
$array = file("posts.txt");
foreach ($array as $line) {
$data = explode("#", $line);
$array1[] = $data[0];}
print_r(array_keys($array1, "2"));?>
[/code]
the text file:
[code]
1#test
2#aaa//line 2
3#aaa
4#bvbb
5#avaer
6#page
7#blue
8#test.comg
[/code]
This gives the line number of the txt file, in my eg. i used 2 so i want it to echo 1 as in line 2

[Orio]

I still don't understand what's the goal. What are you try to achieve? Maybe there's a simple way doing it...

Orio.

[HuggieBear]

Ted, remember what I advised last time?  Take a little time explaining your posts well and you're bound to get a better response.

The following doesn't make sense, are you sure you haven't missed off the middle of the sentence?

[quote]This gives the line number of the txt file, in my eg. i used 2 so i want it to echo 1 as in line 2[/quote]  :-\

Regards
Huggie

[ted_chou12]

Introduction: What I mainly want to do is to search for a match string in the text file, however, more than that, I also want to know the line number (position) of the match string. str_pos wouldnt satisfy that because it only gives the relative position of the letter/symbol, and does not take line number into account. thorpe suggest me to use array_keys.
each line of the txt file has a number infront, thats the id, and because the id is not repeated, therefore I want to use it to find the line number that the entry is in.
Thanks
Hope that makes it clear
Ted

[HuggieBear]

OK, try this...

[code]<?php
$array = file("posts.txt");
foreach ($array as $line) {
  list($k, $v) = explode("#", $line);
  $array1[$k] = $v;
}
print_r(array_keys($array1, "2"));
?>[/code]

Regards
Huggie

[boo_lolly]

[quote author=ted_chou12 link=topic=123658.msg511310#msg511310 date=1169562185]
the result of this function gives:
[code]
Array ( [0] => 1 )
[/code]
where 0 represents the result number, and 1 represents the number of the element in the array, what would i have to do to just get the value "1" instead of a whole Array formation result?
Thanks
Ted
[/quote]
i think this is what you want:
[code]
<?php
$array = array("entry 1", "entry 2",
      "entry 3", "entry 4");

foreach($array as $key => $val){
echo "val: ". $val ."<br />\n";
}
?>
[/code]

[ted_chou12]

thanks