$re = '/[^\s]\s*END/';
$str = ' -- if this is a checkbox,
IF (@widget = \'Checkbox\')BEGIN
EXECUTE [dbo].[home_save_slip_checkbox] @school_fk = @school_fk, @slip_fk = @res_output, @definition_field_fk = @definition_field_fk, @notes = \'\', @points = @points, @student_fk = @student_fk, @academic_year = @academic_year, @occurred_date = @occurred_date END
-- if this is an exclusion
IF (@widget = \'Exclusion\')BEGIN
EXECUTE [dbo].[home_save_slip_exclusion] @slip_fk = @res_output, @school_fk = @school_fk, @student_fk = @student_fk , @ocean_user_fk = @ocean_user_fk, @definition_field_fk = @definition_field_fk, @points = @points, @exclusion_type = \'Internal\', @exclusion_duration = 3, @start_date = @occurred_date , @notes = \'\', @d_of_e_reason_code = \'BU\' , @reason = \'\', @academic_year = @academic_year, @category = \'FIXD\', @occurred_date = @occurred_date , @definition_location_fk = @definition_location_fk END
-- if this is a detention
IF (@widget = \'Detention\')BEGIN
EXECUTE [home_save_slip_detention] @slip_fk = @res_output, @school_fk = @school_fk, @student_fk = @student_fk , @definition_field_fk = @definition_field_fk, @detention_date = @occurred_date , @detention_location_fk = @definition_location_fk, @detention_duration = 30, @points = @points, @definition_slip_fk = @definition_slip_fk, @definition_subject_fk = @definition_subject_fk, @definition_class_fk = -1, @academic_year = @academic_year, @occurred_date = @occurred_date , @detention_reason = \'\', @detention_work_to_be_completed = \'\' END
';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php