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implode 使用一個字符串將數組變成字符串
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<br><?php
$array
=
array
(
'lastname'
,
'email'
,
'phone'
);
$comma_separated
= implode(
","
,
$array
);
echo
$comma_separated
;
// lastname,email,phone
// Empty string when using an empty array:
var_dump(implode(
'hello'
,
array
()));
// string(0) ""
?>
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explode — 使用一個字符串分割另一個字符串，返回一個數組
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<?php
// 示例 1
$pizza
=
"piece1 piece2 piece3 piece4 piece5 piece6"
;
$pieces
=
explode
(
" "
,
$pizza
);
echo
$pieces
[0];
// piece1
echo
$pieces
[1];
// piece2
// 示例 2
$data
=
"foo:*:1023:1000::/home/foo:/bin/sh"
;
list(
$user
,
$pass
,
$uid
,
$gid
,
$gecos
,
$home
,
$shell
) =
explode
(
":"
,
$data
);
echo
$user
;
// foo
echo
$pass
;
// *
?>
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這里如果字符串沒有任何符號可以進行分割的話，就需要考慮別的方法了
str_split — 將字符串轉換為數組
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<?php
$str =
"Hello Friend"
;
$arr1 = str_split($str);
$arr2 = str_split($str,
3
);
print_r($arr1);
print_r($arr2);
?>
輸出結果
Array
(
[
0
] => H
[
1
] => e
[
2
] => l
[
3
] => l
[
4
] => o
[
5
] =>
[
6
] => F
[
7
] => r
[
8
] => i
[
9
] => e
[
10
] => n
[
11
] => d
)
Array
(
[
0
] => Hel
[
1
] => lo
[
2
] => Fri
[
3
] => end
)
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如果不兼容的話，就只有考慮別的方法了，將字符串逐位進行打斷,
這里有一個將字符串進行打斷的手動的方法，是原來為了寫日語半角的假名驗證的一個方法
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這里是一串對半角的假名的枚舉
function
kana_Perl(
$katakana
){
$katakana_array
=
array
(
1=>
"ｱ"
,2=>
"ｲ"
,3=>
"ｳ"
,4=>
"ｴ"
,5=>
"ｵ"
,
6=>
"ｶ"
,7=>
"ｷ"
,8=>
"ｸ"
,9=>
"ｹ"
,10=>
"ｺ"
,
11=>
"ｻ"
,12=>
"ｼ"
,13=>
"ｽ"
,14=>
"ｾ"
,15=>
"ｿ"
,
16=>
"ﾀ"
,17=>
"ﾁ"
,18=>
"ﾂ"
,19=>
"ﾃ"
,20=>
"ﾄ"
,
21=>
"ﾅ"
,22=>
"ﾆ"
,23=>
"ﾇ"
,24=>
"ﾈ"
,25=>
"ﾉ"
,
26=>
"ﾊ"
,27=>
"ﾋ"
,28=>
"ﾌ"
,29=>
"ﾍ"
,30=>
"ﾎ"
,
31=>
"ﾏ"
,32=>
"ﾐ"
,33=>
"ﾑ"
,34=>
"ﾒ"
,35=>
"ﾓ"
,
36=>
"ﾔ"
,37=>
"ﾕ"
,38=>
"ﾖ"
,
39=>
"ﾗ"
,40=>
"ﾘ"
,41=>
"ﾙ"
,42=>
"ﾚ"
,43=>
"ﾛ"
,
44=>
"ﾜ"
,45=>
"ｦ"
,46=>
"ﾝ"
,
47=>
"ｧ"
,48=>
"ｨ"
,49=>
"ｩ"
,50=>
"ｪ"
,51=>
"ｫ"
,
52=>
"ｬ"
,53=>
"ｭ"
,54=>
"ｮ"
,55=>
"ｯ"
,56=>
"､"
,
57=>
"｡"
,58=>
"ｰ"
,59=>
"ﾞ"
,60=>
"ﾟ"
);
$check_result
=
array_search
(
$katakana
,
$katakana_array
);
return
$check_result
;
}
這是一段匹配的法則，注意這里是i +=2,因為一個文字占2位
function
substr_cut(
$katakana
){
$i_end
= 2;
$check_sucess
=
""
;
for
(
$i_start
=0;
$i_start
<
strlen
(
$katakana
);
$i_start
=
$i_start
+2){
$str_cut
=
substr
(
$katakana
,
$i_start
,
$i_end
);
echo
'$str_cut='
.
$str_cut
.
'<br>'
;
$check_sucess
= kana_Perl(
$str_cut
);
if
(!
$check_sucess
){
break
;
}
}
return
$check_sucess
;
}
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沒有規律的數組轉化為字符串
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function
substr_cut(
$katakana
){
$i_end
= 1;
//打斷位數長度，分清楚英文和中文
$check_sucess
=
array
();
for
(
$i_start
=0;
$i_start
<
strlen
(
$katakana
);
$i_start
=
$i_start
+1){
$str_cut
=
substr
(
$katakana
,
$i_start
,
$i_end
);
$check_sucess
[
$i_start
] =
$str_cut
;
echo
'$str_cut='
.
$str_cut
.
'<br>'
;
}
return
$check_sucess
;
}
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