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PHP : Function Reference : dBase Functions : dbase_replace_record

dbase_replace_record

Replaces a record in a database (PHP 4, PHP 5)
bool dbase_replace_record ( int dbase_identifier, array record, int record_number )

Replaces the given record in the database with the given data.

Parameters

dbase_identifier

The database link identifier, returned by dbase_open() or dbase_create().

record

An indexed array of data. The number of items must be equal to the number of fields in the database, otherwise dbase_add_record() will fail.

Note:

If you're using dbase_get_record() return value for this parameter, remember to reset the key named deleted.

record_number

An integer which spans from 1 to the number of records in the database (as returned by dbase_numrecords()).

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example 483. Updating a record in the database

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<?php

// open in read-write mode
$db = dbase_open('/tmp/test.dbf', 2);

if ($db) {
 // gets the old row
 $row = dbase_get_record_with_names($db, 1);
 
 // remove the 'deleted' entry
 unset($row['deleted']);
 
 // Update the date field with the current timestamp
 $row['date'] = date('Ymd');
 
 // Replace the record
 dbase_replace_record($db, $row, 1);
 dbase_close($db);
}

?>


See Also
dbase_add_record()
dbase_delete_record()

Code Examples / Notes » dbase_replace_record

wysocki
The dbase add and replace functions do NOT like to use the associative array.
<?
//This gives "unspecified error" on replace and add:
$row = dbase_get_record_with_names($db, 1);
unset($row['deleted']);
dbase_replace_record($db, $row, 1);
dbase_add_record($db, $row);
//To further prove the point,
//The first add works, the second one fails:
$testrow1=array('one','2','three');
dbase_add_record($db,$testrow1);
$testrow2=array('FIELDA' => 'xxx','FIELDB' => '9','FIELDC' => 'yyyyy');
dbase_add_record($db,$testrow2);
?>

hassan
If you get "unexpected error", try to change the assoc array, $row, to an indexed array with array_values().
Example:
$row = array_values($row);
dbase_replace_record($db, $row, 1);
The dbase_replace-function cannot handle an assoc array.
Hope this will save someone a headache! ;)

ptorres
how replace a record ?
This example delete a record and
add a record with a new field value.
// createtable.php
<?
$dbname = "players.dbf";  
$def = array
(
array("record",  "N",8,0),  
array("account",  "C",10),
array("password",  "C",5),
array("name",  "C",30)
);
if (!dbase_create($dbname, $def))
{
print "<strong>Error!
Try: chmod 707 tabledirectory</strong>";
}
else  
{
print "<strong>The table ".$dbname." was created !</strong>";
}
?>
// addrecord.php
// just a test, you can add more features to send the data by a html form and validate the account
<?
$db=dbase_open("players.dbf",);
$nextrecord = 1;
for ($a=1; $a <= $nr; $a++)
 {
    $rec = dbase_get_record($db, $a);
    $nextrecord = $rec[0]+1;
 }
$def = array ($nextrecord,'hsanchez', 'hugol', 'hugo sanchez');  
   dbase_add_record($db, $def);  
   dbase_close($db);  
?>
// modify.htm
<FORM ACTION='modify.php' METHOD='post'>
<TABLE BORDER='9'>
<TR>
<TD>Account</TD><TD>Password</TD><TD>Name</TD>
</TR>
<TR>
<TD><INPUT TYPE='TEXT' SIZE='10' MAXLENGTH='10' NAME='f_account></TD><TD><INPUT TYPE='PASSWORD' SIZE='5' MAXLENGTH='5' NAME='f_password'></TD><TD><INPUT TYPE='TEXT' SIZE='30' MAXLENGTH='30' NAME='f_name'></TD>
</TR>
</TABLE>

<INPUT TYPE='Submit' VALUE='Modify'>
</FORM>
</CENTER>
</BODY>
</HTML>
// modify.php
<?
$exist = 0;
$db=dbase_open("players.dbf",0);
$nr = dbase_numrecords($db);
if ($nr==0)
 {
   print "There's no players !";
 }
else
 {
   for ($a=1; $a <= $nr; $a++)
    {
    $rec = dbase_get_record($db, $a);
    if ( !strcasecmp (trim($rec[1]), trim($f_account)) and !strcasecmp (trim($rec[2]), trim($f_password)))
       {
          $exist = 1;
          $nrm = $a;
          break;
       }
    }
 }
dbase_close($db);  
if ($exist == 1) {
 if ($f_name and $f_account and $f_password)
 {
   $db=dbase_open("players.dbf",2);  
   dbase_delete_record($db,$nrm);  
   dbase_pack($db);
   dbase_close($db);
   $db=dbase_open("players.dbf",2);  
   $def = array($nrm,trim($f_account),$f_password,trim($f_name));  
   dbase_add_record($db, $def);  
   print "The name was updated !";
 }
 else
 {
   print "<strong>Error, enter alll data!</strong>";
 }
}
if ($exist == 0)
{
 print "<strong>Error, the data is not valid !</strong>";
}
?>
That's all !
I know that there is a dbase-replace-record function but i could use it.

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dbase_add_record
dbase_close
dbase_create
dbase_delete_record
dbase_get_header_info
dbase_get_record_with_names
dbase_get_record
dbase_numfields
dbase_numrecords
dbase_open
dbase_pack
dbase_replace_record
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