正则表达式不适用于 preg_match_all

Question

我有这个数据：

49780|Truck|2010|FORD|F-250 SUPER DUTY PICKUP|CABELAS|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2008|FORD|F-250 SUPER DUTY PICKUP|FX4|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2009|FORD|F-250 SUPER DUTY PICKUP|FX4|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-250 SUPER DUTY PICKUP|HARLEY-DAVIDSON EDITION|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-250 SUPER DUTY PICKUP|KING RANCH|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2008|FORD|F-250 SUPER DUTY PICKUP|LARIAT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2009|FORD|F-250 SUPER DUTY PICKUP|LARIAT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-250 SUPER DUTY PICKUP|LARIAT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2008|FORD|F-250 SUPER DUTY PICKUP|XL|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2009|FORD|F-250 SUPER DUTY PICKUP|XL|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-250 SUPER DUTY PICKUP|XL|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2008|FORD|F-250 SUPER DUTY PICKUP|XLT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2009|FORD|F-250 SUPER DUTY PICKUP|XLT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-250 SUPER DUTY PICKUP|XLT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-350 SUPER DUTY PICKUP|CABELAS|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2008|FORD|F-350 SUPER DUTY PICKUP|FX4|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2009|FORD|F-350 SUPER DUTY PICKUP|FX4|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-350 SUPER DUTY PICKUP|HARLEY-DAVIDSON EDITION|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-350 SUPER DUTY PICKUP|KING RANCH|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2008|FORD|F-350 SUPER DUTY PICKUP|LARIAT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2009|FORD|F-350 SUPER DUTY PICKUP|LARIAT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-350 SUPER DUTY PICKUP|LARIAT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2008|FORD|F-350 SUPER DUTY PICKUP|XL|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2009|FORD|F-350 SUPER DUTY PICKUP|XL|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-350 SUPER DUTY PICKUP|XL|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2008|FORD|F-350 SUPER DUTY PICKUP|XLT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2009|FORD|F-350 SUPER DUTY PICKUP|XLT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed
49780|Truck|2010|FORD|F-350 SUPER DUTY PICKUP|XLT|6.4L DIESEL V8|||Crew Cab w/81.8 in./6 ft. 9.8 in. Bed|Extended Cab w/81.8 in./6 ft. 9.8 in. Bed

我使用 RegExr 编写了这个正则表达式。如果该行匹配，它会捕获第 5 列（由 | 分隔）：

.*\|.*\|2010\|ford\|(.*)\|.*\|.*\|.*\|.*\|.*\|.*

当我对其运行 preg_match_all 时，出现以下错误：

preg_match_all() [<a href='function.preg-match-all'>function.preg-match-all</a>]: Unknown modifier '*'

Answer 1

确保您使用 分隔符，看起来您想要一个不区分大小写 也匹配：

$matches = array();
preg_match_all('/.*\|.*\|2010\|ford\|(.*)\|.*\|.*\|.*\|.*\|.*\|.*/i', $subject, $matches);