Re: [PHP-DB] global not solving my problem
[email protected] (Micah Gersten)
| Newsgroups | php.db |
|---|---|
| Message-ID | <[email protected]> |
Fred Silsbee wrote:
> problem:
>
> I have resolved all problems in the PHP program below except one.
>
> Yes I know the program is in a mess but I will clean it up.
>
> This is a learning exercise!
>
> Basically there is one function per page.
>
> When I make a selection on a page, a function is executed.
>
> I need to pass the value of $rowInsert from one page to another.
>
> $rowInsert is altered when I enter the program (at the top).
>
> To verify the program works (outside this problem), I set the value = 525.
>
> Global does not persist the value between pages(functions).
>
> I can't use _POST because the value of $rowInsert is not associated with an entry slot(edit control).
>
> I could make an entry slot(edit control) just for this purpose but that is not good!
>
>
>
>
>
>
>
> <?php
> /*
> drop sequence log_id;
> create sequence log_id
> increment by 1
> start with 1;
>
> drop table log_book_id;
>
> create table log_book_id ( log_id number primary key, fdate date, actype varchar2(16), acid varchar(16), nlandings number, nhoursnumber);
>
> insert into log_book_id values (logid.nextval, TO_DATE('08/12/1973','MM/dd/YYYY'),'C150','N5787G',1,1.8);
>
> insert into log_book_id values (logid.nextval, TO_DATE('08/17/1973','MM/dd/YYYY'),'C150','N5787G',3,1.5);
>
> insert into log_book_id values (logid.nextval, TO_DATE('08/26/1973','MM/dd/YYYY'),'C150','N5787G',10,1.8);
>
> insert into log_book_id values (logid.nextval, TO_DATE('09/01/1973','MM/dd/YYYY'),'C150','N5293S',9,1.7);
> */
> print("........................................ENTER................");
> $rowInsert = 525; // temporary
> $db = "(DESCRIPTION =
> (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
> (CONNECT_DATA =
> (SERVER = DEDICATED)
> (SID = LMKIIIGDNSID)
> )
> )";
> if ($conn=oci_connect('landon', 'rumprocella',$db))
> {
> echo "Successfully connected to Oracle.\n";
> }
> else
> {
> $err = OCIError();
> echo "Oracle Connect Error " . $err['message'];
> }
>
> //construct a global variable for the form profile
> $fields = array("fdate", "actype", "acid", "nlandings", "nhours");
> ///
>
> // If the submit button has been pressed
> if (isset($_POST['select'])){
> displayDeleteForm();
> }elseif(isset($_POST['delete'])){
> deleteRecords();
> } elseif(isset($_POST['insert'])){
> insertRecord();
> } elseif (isset($_POST['new'])){
> displayEntryForm();
> } elseif (isset($_POST['update'])){
> showRecord();
> } else {
> //default action
> displayEntryForm();
> }
>
> //...........................................................................function displayDeleteForm()
>
> function displayDeleteForm(){
> //get $fields into the function namespace
> global $fields;
> global $conn;
> /* Create and execute query. */
> // Loop through each row, outputting the actype and name
> echo <<<HTML
> Pilots Logbook entries stored in Oracle Relational Database
> under Redhat Fedora 8 Linux
> <form action="{$_SERVER['PHP_SELF']}" method="post">
> <table width="50%" align="center" border="1">
> <tr>
> <th>checked</th>
> <th>rowID</th>
> <th>fdate</th>
> <th>actype</th>
> <th>acid</th>
> <th>nlandings</th>
> <th>nhours</th>
> </tr>
> HTML;
>
> //get log_book_id table information
> $user = "select * from log_book_id";
> $result = oci_parse($conn, $user);
> $r = oci_execute($result);
>
> //display log_book_id information
>
> $count = 0;
> while ($newArray = oci_fetch_assoc($result)) {
> if ($count == 0) print_r($newArray);
> $count = 1;
> foreach ($fields as $field){
> $fieldx = strtoupper($field);
> ${$field} = $newArray[$fieldx];
> $count = $count +1;
> // print($field);
> // print_r($newArray[$field]);
> }
> $rowID = $newArray['LOG_ID'];
>
> //note that we do not rely on the checkbox value as not all browsers submit it
> //instead we rely on the name of the checkbox.
> echo <<<HTML
> <TR>
> <td>
> <input type="checkbox" name="checkbox[$rowID]" value="$rowID">Check to delete record
> </td>
> <TD>$rowID</TD>
> <TD>$fdate</TD>
> <TD>$actype</TD>
> <TD>$acid</TD>
> <TD>$nlandings</TD>
> <TD>$nhours</TD>
> </TR>
>
> HTML;
>
> } // while
> echo <<<HTML
> <tr>
> <td colspan="7">
> <input type="submit" name="delete" value="delete checked items"/>
> <input type="submit" name="update" value="update checked items"/>
> <input type="submit" name="new" value="New Log Entry" />
> <input type="reset" name="reset" value="Reset Form" />
> </td>
> </tr>
> </table>
> </form>
>
> HTML;
> } //close function
>
>
> // ................................................................. function deleteRecords()
> //
>
> function deleteRecords()
> {
>
> $db = "(DESCRIPTION =
> (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
> (CONNECT_DATA =
> (SERVER = DEDICATED)
> (SID = LMKIIIGDNSID)
> )
> )";
>
> // Loop through each log_book_id with an enabled checkbox
> if (!isset($_POST['checkbox'])){
> return true;
> }
> //else
>
> foreach($_POST['checkbox'] as $key=>$val){
> $toDelete[] = $key;
> }
> //expand the array for an IN query
> $where = implode(',', $toDelete);
>
> if ($conn=oci_connect('landon', 'rumprocella',$db))
> {
> echo "Successfully connected to Oracle D.\n";
> }
> else
> {
> $err = OCIError();
> echo "Oracle Connect Error " . $err['message'];
> }
>
> $query = "DELETE FROM log_book_id WHERE log_id IN ($where)";
> echo($query);
> $result = oci_parse($conn, $query);
> $r = oci_execute($result);
> // Commit transaction
> $committed = oci_commit($conn);
> // Test whether commit was successful. If error occurred, return error message
> if (!$committed) {
> $error = oci_error($conn);
> echo 'Commit failed. Oracle reports: ' . $error['message'];
> }
> // Should have one affected row
> if ((oci_num_rows($result)== 0) ) {
> echo "<p>There was a problem deleting some of the selected items.</p><p>".oci_error().'</p>';
> // exit();
> } else {
> echo "<p>The selected items were successfully deleted.</p>";
> }
> //direct the user back to the delete form
> displayDeleteForm();
> } //end function
>
> //...........................................................................function insertRecord()
>
> function insertRecord()
> {
> global $rowInsert;
> $db = "(DESCRIPTION =
> (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
> (CONNECT_DATA =
> (SERVER = DEDICATED)
> (SID = LMKIIIGDNSID)
> )
> )";
> if ($conn=oci_connect('landon', 'rumprocella',$db))
> {
> echo "Successfully connected to Oracle.\n";
> }
> else
> {
> $err = OCIError();
> echo "Oracle Connect Error " . $err['message'];
> }
> // Retrieve the posted log book information.
> global $fields;
> //add some very crude validation
> foreach ($fields as $field){
> if (empty($_POST[$field])){
> $messages[] = "You must complete the field $field \r\n";
> } else {
> $dFields[$field] = mysql_real_escape_string(trim($_POST[$field]));
> }
> }
> if (count($messages)>0) {
> displayEntryForm($messages, $dFields);
> exit();
> }
> //end validation
>
> //get variables into the namespace
> extract($dFields);
> // Insert the log book information into the log book table
> print("insertRecord".$rowInsert);
> if($rowInsert)
> {
> $query = "UPDATE log_book_id set fdate = '$fdate', actype='$actype', acid='$acid', nlandings='$nlandings', nhours='$nhours' where log_id='$rowInsert'";
> }
> else
> {
> $query = "INSERT INTO log_book_id (log_id , fdate, actype, acid, nlandings, nhours) values (logid.nextval,'$fdate','$actype','$acid','$nlandings','$nhours')";
> }
>
> $rowInsert = 0;
> // echo ($query);
> $result = oci_parse($conn, $query);
> $r = oci_execute($result);
> // Display an appropriate message
> if ($r) {
> echo "<p>Product successfully inserted!</p>";
> }else {
> echo "<p>There was a problem inserting the log book!</p>";
> $error = oci_error($conn);
> echo 'Insert failed. Oracle reports: ' . $error['message'];
>
> }
> //direct the user back to the entry form
>
> // Commit transaction
> $committed = oci_commit($conn);
> // Test whether commit was successful. If error occurred, return error message
> if (!$committed) {
> $error = oci_error($conn);
> echo 'Commit failed. Oracle reports: ' . $error['message'];
> }
> // Should have one affected row
> if ((oci_num_rows($result)== 0) ) {
> echo "<p>There was a problem inserting some of the selected items.</p><p>".oci_error().'</p>';
> // exit();
> } else {
> echo "<p>The selected items were successfully inserted.</p>";
> }
> displayDeleteForm();
> }
>
>
> //...........................................................................function showRecord()
>
> function showRecord() {
>
> global $fields;
> global $dFields;
> global $rowInsert;
> // Loop through each log_book_id with an enabled checkbox
> if (!isset($_POST['checkbox'])){
> return true;
> }
> //else
>
> foreach($_POST['checkbox'] as $key=>$val){
> $toDelete[] = $key;
> }
>
>
> $db = "(DESCRIPTION =
> (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
> (CONNECT_DATA =
> (SERVER = DEDICATED)
> (SID = LMKIIIGDNSID)
> )
> )";
> if ($conn=oci_connect('landon', 'rumprocella',$db))
> {
> echo "Successfully connected to Oracle.\n";
> }
> else
> {
> $err = OCIError();
> echo "Oracle Connect Error " . $err['message'];
> }
>
> // errors
> //get log_book_id table information
> $user = "select * from log_book_id where log_id = $toDelete[0]";
> $result = oci_parse($conn, $user);
> $r = oci_execute($result);
>
> //display log_book_id information
>
> $count = 0;
> $newArray = oci_fetch_assoc($result);
> if ($count == 0) print_r($newArray);
> $count = 1;
> foreach ($fields as $field){
> $fieldx = strtoupper($field);
> ${$field} = $newArray[$fieldx];
> $dFields[$field] = ${$field};
> }
> $rowID = $newArray['LOG_ID'];
> $rowInsert = $rowID;
> print_r($dFields);
> print ($rowInsert);
> //note that we do not rely on the checkbox value as not all browsers submit it
> //instead we rely on the name of the checkbox.
>
> // insert the row information in the entry form
> global $fields;
> //end validation
> displayEntryForm();
> }
>
> //...........................................................................function displayEntryForm()
> function displayEntryForm($errorMessages=null, $dFields=null){
> if (!empty($errorMessages)){
> echo "<ul><li>".explode('</li><li>', $errorMessages) . "</li></ul>";
> }
>
> global $dFields;
> //sort out field values
> global $fields;
> foreach ($fields as $field){
> if (isset($dFields[$field])){
> ${$field} = $dFields[$field];
> } else {
> ${$field} = '';
> }
> }
>
> echo <<<HTML
> <form action="{$_SERVER['PHP_SELF']}" method="post">
> <p>
> Flight Date:<br />
> <input type="text" size="20" maxlength="40" name="fdate"
> value="$fdate" />
> </p>
> <p>
> Aircraft Type:<br />
> <input type="text" size="20" maxlength="40" name="actype"
> value="$actype" />
> </p>
> <p>
> Aircraft ID:<br />
> <input type="text" size="20" maxlength="40" name="acid"
> value="$acid" />
> </p>
> <p>
> Number Landings:<br />
> <input type="text" size="20" maxlength="40" name="nlandings"
> value="$nlandings" />
> </p>
> <p>
> Number Hours:<br />
> <input type="text" size="20" maxlength="40" name="nhours"
> value="$nhours" />
> </p>
> <button type="submit" name = "insert" value="Insert Row!"
> style="color:maroon font:18pt Courier; font-weight:bold ">Insert Row
> </button>
> <button type="submit" name = "select" value="Show All!"
> style="color:red font:18pt Courier; font-weight:bold ">Show All
> </button>
> <button type="submit" name = "delete" value="Delete Row!"
> style="color:red font:18pt Courier; font-weight:bold ">Delete Row!
> </button>
> <button type="submit" name = "update" value="Update Row!"
> style="color:red font:18pt Courier; font-weight:bold ">Update Row!
> </button>
> </form>
> HTML;
> } //end display function
> ?>
>
>
>
>
>
>
>
Have you tried the $_SESSION variable?
http://us.php.net/manual/en/reserved.variables.session.php
Thank you,
Micah Gersten
onShore Networks
Internal Developer
http://www.onshore.com