DateTime could not be converted to string

PHPMaker General Discussion (PHPMaker)
1

Can anybody explain to me what this error means and how to correct it?

best regards

Stig

2

Sorry forgot the message:

Error:
Object of class DateTime could not be converted to string

  at views/Events22Edit.php:111
  at include()
     (src/PhpRenderer.php:211)
  at PHPMaker2026\Hus3\PhpRenderer->protectedIncludeScope('views/Events22Edit.php', array('Page' => object(Events22Edit), 'Title' => null, 'Language' => object(Language), 'Security' => object(AdvancedSecurity), 'TokenNameKey' => '_csrf_id', 'TokenName' => 'submit', 'TokenValueKey' => '_csrf_token', 'TokenValue' => 'csrf-token', 'DashboardReport' => null, 'SkipHeaderFooter' => false, 'Nonce' => '611v3Ul4UpteN39w/UCO1+ri'))
     (src/PhpRenderer.php:177)
  at PHPMaker2026\Hus3\PhpRenderer->fetchTemplate('Events22Edit.php', array('Page' => object(Events22Edit), 'Title' => null, 'Language' => object(Language), 'Security' => object(AdvancedSecurity), 'TokenNameKey' => '_csrf_id', 'TokenName' => 'submit', 'TokenValueKey' => '_csrf_token', 'TokenValue' => 'csrf-token', 'DashboardReport' => null, 'SkipHeaderFooter' => false, 'Nonce' => '611v3Ul4UpteN39w/UCO1+ri'))
     (src/PhpRenderer.php:148)
  at PHPMaker2026\Hus3\PhpRenderer->fetch('Events22Edit.php', array(), true)
     (src/PhpRenderer.php:51)
  at PHPMaker2026\Hus3\PhpRenderer->render(object(Response), 'Events22Edit.php')
     (src/BaseController.php:387)
  at PHPMaker2026\Hus3\BaseController->runPage(object(Events22Edit))
     (controllers/Events22Controller.php:103)
  at PHPMaker2026\Hus3\Events22Controller->edit(object(Request), object(Events22Edit), object(_Event))
     (vendor/symfony/http-kernel/HttpKernel.php:195)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
     (vendor/symfony/http-kernel/HttpKernel.php:77)
  at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
     (vendor/symfony/http-kernel/Kernel.php:205)
  at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
     (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:34)
  at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run()
     (vendor/autoload_runtime.php:32)
  at require_once('/var/www/bogknold.dk/public_html/hus3/vendor/autoload_runtime.php')
     (index.php/:8)
3

You may post source code near line 111 for discussion.

4

Here is the code:

<?php if ($Page->start_date->Visible) { // start_date ?>
    <div id="r_start_date"<?= $Page->start_date->rowAttributes() ?>>
        <label id="elh_events22_start_date" for="x_start_date" class="<?= $Page->LeftColumnClass ?>"><?= $Page->start_date->caption() ?><?= $Page->start_date->Required ? Language()->phrase("FieldRequiredIndicator") : "" ?></label>
        <div class="<?= $Page->RightColumnClass ?>"><div<?= $Page->start_date->cellAttributes() ?>>
<span id="el_events22_start_date">
<input type="<?= $Page->start_date->getInputTextType() ?>" name="x_start_date" id="x_start_date" data-table="events22" data-field="x_start_date" value="<?= $Page->start_date->getEditValue() ?>" size="30" maxlength="10" placeholder="<?= HtmlEncode($Page->start_date->getPlaceHolder()) ?>" data-format-pattern="<?= HtmlEncode($Page->start_date->formatPattern()) ?>"<?= $Page->start_date->editAttributes() ?> aria-describedby="x_start_date_help">
<?= $Page->start_date->getCustomMessage() ?>
<div class="invalid-feedback"><?= $Page->start_date->getErrorMessage() ?></div>
</span>
</div></div>
    </div>
<?php } ?>
<?php if ($Page->end_date->Visible) { // end_date ?>

By the way it worked fine until I changes the database field to "date" - in other project it causes no problem. Hope you can see what's the problem

best regards
Stig

5

What was the original data type? "datetime"? What is the database type?

6

Original data type varchar - MySql database

7

Data type varchar won't work for the datetime fields for calendar, changing to date (or datetime) is correct.

8

had similar issue with datetime object blowing up

v2025:
$dt = $newRow['LastModified'];

v2026:
$dt = $newRow['LastModified']->format('Y-m-d');

seemed to fix the problem