public static dayAsSql ( integer | string | DateTime $dateString, string $fieldName, string | DateTimeZone | null $timezone = null ) : string | ||
$dateString | integer | string | DateTime | UNIX timestamp, strtotime() valid string or DateTime object |
$fieldName | string | Name of database field to compare with |
$timezone | string | DateTimeZone | null | Timezone string or DateTimeZone object |
return | string | Partial SQL string. |