Gossamer Forum: General: Internet Technologies: General PHP question

Jun 2, 2003, 7:42 AM

Unquick

Novice (35 posts)

Jun 2, 2003, 7:42 AM

Post #1 of 5

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General PHP question - mktime()

Here is the code sample:

Code:
 Code<?php 
  $dateA = '12-25-2003';  
  $dateB = '12-24-1999';  

  // convert to unix time stamps  
  $fooA = explode('-',$dateA);  
  $fooB = explode('-',$dateB);  

  $timestampA = mktime(0,0,0,$fooA[0],$fooA[1],$fooA[0]);  
  $timestampB = mktime(0,0,0,$fooB[0],$fooB[1],$fooB[0]);  

  if($timestampA > $timestampB)  
  {  
    echo $dateA . " is greater than B";  
  } 
  else{ 
    echo $dateB . " is greater than A";  
    } 
 ?>

My question is what do the [] represent in:

$timestampA = mktime(0,0,0,$fooA[0],$fooA[1],$fooA[0]);

Jun 2, 2003, 8:02 AM

Andy

Veteran / Moderator (18441 posts)

Jun 2, 2003, 8:02 AM

Post #2 of 5

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Re: [Unquick] General PHP question - mktime() In reply to

The[] represent a reference to the array. For example, if I use;

Code:
<? 

$string = "this is a test string"; 
$exploded = explode(" ",$string); 

for ($i = 0; $i <= 4; $i++) { 
    print "\$exploded[\$i] => " . $exploded[$i]  .  "<BR>"; 
} 

?>

This would print something like;

$exploded[0] => this
$exploded[1] => is
$exploded[2] => a
$exploded[3] => test
$exploded[4] => string

As you can see, each word can be reference with the $array_name[] call. i.e $array_name[0].

Hope thats clear Smile

Andy (mod)
andy@ultranerds.co.uk

Last edited by:

Andy: Jun 2, 2003, 8:02 AM

Jun 2, 2003, 8:12 AM

Unquick

Novice (35 posts)

Jun 2, 2003, 8:12 AM

Post #3 of 5

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Re: [Andy] General PHP question - mktime() In reply to

Ok now I understand. So it would also be more correct to change the last array:

Code:
  $timestampA = mktime(0,0,0,$fooA[0],$fooA[1],$fooA[2]);   
  $timestampB = mktime(0,0,0,$fooB[0],$fooB[1],$fooB[2]);

Perfect thanks.

Jun 2, 2003, 8:31 AM

Andy

Veteran / Moderator (18441 posts)

Jun 2, 2003, 8:31 AM

Post #4 of 5

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Re: [Unquick] General PHP question - mktime() In reply to

Yeah.

Cheers

Andy (mod)
andy@ultranerds.co.uk

Jun 2, 2003, 10:47 AM

Paul

Veteran (19537 posts)

Jun 2, 2003, 10:47 AM

Post #5 of 5

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Re: [Unquick] General PHP question - mktime() In reply to

The [] essentially don't do anything, it is the number inside them that's important. It's a zero based index of the element.