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Preg_split explode

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前言

此兩函式都可做字串切割，一個單純用字串切，另一個用正則切。

Eplode

explode ( string $delimiter , string $string [, int $limit = PHP_INT_MAX ] ) : array

delimiter 參數

String
"|"

limit 參數

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# limit= 3
Array
(
    [0] => one
    [1] => two
    [2] => three|four|five|six|seven
)
# limit= -2
Array
(
    [0] => one
    [1] => two
    [2] => three
    [3] => four
    [4] => five
)
# limit= -1
Array
(
    [0] => one
    [1] => two
    [2] => three
    [3] => four
    [4] => five
    [5] => six
)
# limit= 0 or 1
Array
(
    [0] => one|two|three|four|five|six|seven
)

Grep_split

preg_split ( string $pattern , string $subject [, int $limit = -1 [, int $flags = 0 ]] ) : array

pattern 參數

regular expression
"/[\s,]+/"

limit 參數

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# limit = -1 or 0 means "no limit"
Array
(
    [0] => onn e
    [1] => t wo
    [2] => three
    [3] => four
    [4] => five
    [5] => six
    [6] => seven
)
# limit= 1
Array
(
    [0] => one|two|three|four|five|six|seven
)