PHP/Data Structure/explode

Breaking Strings into Arrays with explode()

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<?php

   $start_date = "2000-01-12";
   $date_array = explode ("-",$start_date);

?>

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Display year an individual was born

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<?php $expdate = explode ("-","1979-06-23"); echo $expdate[0] . ","; echo $expdate[0]; ?>

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explode( ) function converts a string into an array using a separator value

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//array explode ( string separator, string input [, int limit] ) <?

   $oz = "Lions and Tigers and Bears";
   $oz_array = explode(" and ", $oz);

?>

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explode() function divides string into various elements, returning these elements in an array.

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The syntax is: array explode (string separator, string string [, int limit]) <? $info = "A|b|i"; $user = explode("|", $info); print $user; ?>

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explode.php

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<?php $summary = <<< summary line 1 line 2 <a href="http://www.php.net">PHP 5</a> summary; $words = sizeof(explode(" ",strip_tags($summary))); echo "Total words in summary: $words"; ?>

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Generating an ID with microtime()

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<?php list($microseconds,$seconds) = explode(" ",microtime()); $id = $seconds.$microseconds.getmypid(); ?>

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Processing variable-length text fields

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<?php $delim = "|"; $fh = fopen("books.txt","r") or die("can"t open: $php_errormsg"); while (! feof($fh)) {

   $s = rtrim(fgets($fh));
   $fields = explode($delim,$s);

} fclose($fh) or die("can"t close: $php_errormsg"); ?>

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Reading and Writing Comma-Separated Data

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<?php

 $commafile = "data.txt";
 if (file_exists ($commafile)){
   $rows = file ($commafile);
   for ($i = 0; $i < count ($rows); $i++){
     $exprow = explode (",", $rows[$i]);
     echo "ID: " . $exprow[0] . "
";
     echo "Name: " . $exprow[1] . "
";
     echo "Author: " . $exprow[2] . "
";

echo "

---

";

   }
 } else {
   echo "File does not exist.";
 }
 $idarray = array ("1","2","3");
 $namearray = array ("Book 1","Book 2","Book 3");
 $authorarray = array ("Author","Author","Author");
   
 $newfile = "data.txt";
 try {
   if ($readfile = fopen ($newfile, "w")){
     for ($i = 0; $i < count ($idarray); $i++){
       $writestring = $idarray[$i] . "," . $namearray[$i] . "," . $authorarray[$i] . "\n";
       fwrite ($readfile, $writestring);
     }
     fclose ($readfile);
   } else {
     throw new exception ("Sorry, the file could not be opened.");
   }
 } catch (exception $e) {
   echo $e->getmessage();
 }

?>

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Using explode() with date()

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<?php $ar = explode("|",date("h a|F d, Y")); print "It"s after $ar[0] on $ar[1]"; ?>

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Using the explode() Function

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<?php

   $input_string = "this is a test.";
   $pieces = explode(",", $input_string);
   echo "Names in List: 
\n";
   foreach($pieces as $name) {
       echo trim($name) . "
\n";
   }

?>

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