Description
array split (string pattern, string string [, int
limit])
Returns an array of strings, each of which is a substring of
string formed by splitting it on
boundaries formed by the regular expression
pattern. If limit
is set, the returned array will contain a maximum of
limit elements with the last element
containing the whole rest of string. If
an error occurs, split() returns false.
To get the first five fields from a line from
/etc/passwd:
Example 1. Split() Example
$passwd_list = split (":", $passwd_line, 5);
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To parse a date which may be delimited with slashes, dots, or
hyphens:
Example 2. Split() Example
$date = "04/30/1973"; // Delimiters may be slash, dot, or hyphen
list ($month, $day, $year) = split ('[/.-]', $date);
echo "Month: $month; Day: $day; Year: $year<br>\n";
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Note that pattern is case-sensitive.
Note that if you don't require the power of regular expressions,
it is faster to use explode(), which doesn't
incur the overhead of the regular expression engine.
Please note that pattern is a regular
expression. If you want to split on any of the characters which
are considered special by regular expressions, you'll need to
escape them first. If you think split() (or
any other regex function, for that matter) is doing something
weird, please read the file regex.7,
included in the regex/ subdirectory of the
PHP distribution. It's in manpage format, so you'll want to do
something along the lines of man
/usr/local/src/regex/regex.7 in order to read it.
See also: spliti(),
explode(), and implode().
