Functions JScms
Function: JScms_field_not_exist
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Function: JScms_field_not_exist
The JScms_field_not_exist function checks whether a row exists in the specified table with a given field value.
Syntax
JScms_field_not_exist($jakdb, $table, $field, $check)
Parameters
$jakdb: (object) An instance of the database connection usingJAKWEB\JAKsql.$table: (string) The name of the database table to query.$field: (string) The field name to check.$check: (mixed) The value to check for in the specified field.
Returns
(bool) Returns true if the field value exists in the table, or false otherwise.
Example Usage
<?php
// Check if the email exists in the "users" table
if (JScms_field_not_exist($jakdb, 'users', 'email', 'example@example.com')) {
echo "Email exists.";
} else {
echo "Email does not exist.";
}
?>