The is_null template operator #

Registered in lib/eztemplate/classes/eztemplateautoload.php by the class eZTemplateTypeOperator (lib/eztemplate/classes/eztemplatetypeoperator.php). The same class also registers: is_array, is_boolean, is_integer, is_float, is_numeric, is_string, is_object, is_class, is_set, is_unset, get_type, get_class.

Parameters #

None.

The operator works on its input: the value before |.

Example #

Built from the parameter list above; the values are placeholders (the operator's template hints decide whether it takes an input).

{$value|is_null}

In a shipped template #

The first use in the templates of this installation, design/admin/templates/audit/dashboard.tpl line 41:

<p class="a4-audit-sub">{'Signing key %id, fingerprint %fp'|i18n( 'design/admin/audit',, hash( '%id', $health.key.id, '%fp', $health.key.fingerprint ) )|wash}{if is_null( $health.key.age_days )|not}, {'%n days old'|i18n( 'design/admin/audit',, hash( '%n', $health.key.age_days ) )}{/if}</p>

Related #

• All template operators
• Templates and design
• A custom template operator

Generated by ./console exp:help:examples from lib/eztemplate/classes/eztemplateautoload.php, lib/eztemplate/classes/eztemplatetypeoperator.php. Do not edit this page: change the source and generate again (how). Free documentation: GFDL 1.3 or later.