回答編集履歴
4
加筆修正
answer
CHANGED
|
@@ -78,7 +78,7 @@
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78
78
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79
79
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$patterns = array("/^[12][0-9]{2}$/m", "/^[3-9][0-9]{2}$/m", "/^[1-9][0-9]$/m", "/^[0-9]$/m");
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80
80
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$replacements = array('A', 'B', 'A', 'A');
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81
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-
$patterns_2nd = array('/A/', '/B/');
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81
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+
$patterns_2nd = array('/^A$/m', '/^B$/m');
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82
82
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$replacements_2nd = array('0', '1');
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83
83
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84
84
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$targetText = preg_replace($patterns, $replacements, $targetText);
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3
加筆修正
answer
CHANGED
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@@ -76,7 +76,7 @@
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76
76
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900
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77
77
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EOT;
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78
78
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|
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79
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-
$patterns = array("/[12][0-9]{2}/", "/[3-9][0-9]{2}/", "/[1-9][0-9]/", "/[0-9]/");
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79
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+
$patterns = array("/^[12][0-9]{2}$/m", "/^[3-9][0-9]{2}$/m", "/^[1-9][0-9]$/m", "/^[0-9]$/m");
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80
80
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$replacements = array('A', 'B', 'A', 'A');
|
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81
81
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$patterns_2nd = array('/A/', '/B/');
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82
82
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$replacements_2nd = array('0', '1');
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@@ -96,4 +96,7 @@
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96
96
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> 0
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97
97
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> 0
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98
98
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> 1
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99
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-
> 1
|
|
99
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+
> 1
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|
100
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+
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101
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+
[PHP: 正規表現パターンに使用可能な修飾子 - Manual](http://php.net/manual/ja/reference.pcre.pattern.modifiers.php)
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102
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+
`/m`で複数行データでもヒットするようになります。
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2
加筆修正
answer
CHANGED
|
@@ -55,4 +55,45 @@
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55
55
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> 0
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56
56
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> 0
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57
57
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> 1
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|
58
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+
> 1
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|
59
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+
|
|
60
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+
`preg_replace()`使ってみると
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61
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+
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62
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+
```php
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|
63
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+
<?php
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|
64
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+
|
|
65
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+
$targetText = <<<EOT
|
|
66
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+
0
|
|
67
|
+
1
|
|
68
|
+
2
|
|
69
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+
3
|
|
70
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+
10
|
|
71
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+
20
|
|
72
|
+
30
|
|
73
|
+
100
|
|
74
|
+
200
|
|
75
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+
300
|
|
76
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+
900
|
|
77
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+
EOT;
|
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78
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+
|
|
79
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+
$patterns = array("/[12][0-9]{2}/", "/[3-9][0-9]{2}/", "/[1-9][0-9]/", "/[0-9]/");
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|
80
|
+
$replacements = array('A', 'B', 'A', 'A');
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81
|
+
$patterns_2nd = array('/A/', '/B/');
|
|
82
|
+
$replacements_2nd = array('0', '1');
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|
83
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+
|
|
84
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+
$targetText = preg_replace($patterns, $replacements, $targetText);
|
|
85
|
+
$targetText = preg_replace($patterns_2nd, $replacements_2nd, $targetText);
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|
86
|
+
|
|
87
|
+
echo $targetText;
|
|
88
|
+
```
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|
89
|
+
> 0
|
|
90
|
+
> 0
|
|
91
|
+
> 0
|
|
92
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+
> 0
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|
93
|
+
> 0
|
|
94
|
+
> 0
|
|
95
|
+
> 0
|
|
96
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+
> 0
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|
97
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+
> 0
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|
98
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+
> 1
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58
99
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> 1
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1
加筆修正
answer
CHANGED
|
@@ -16,4 +16,43 @@
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16
16
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echo '1' . "\n";
|
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17
17
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}
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|
18
18
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}
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19
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-
```
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|
19
|
+
```
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|
20
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+
で、ちゃんと`preg_match()`を使うと
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21
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+
```php
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|
22
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+
<?php
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|
23
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+
|
|
24
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+
$targetText = <<<EOT
|
|
25
|
+
0
|
|
26
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+
1
|
|
27
|
+
2
|
|
28
|
+
3
|
|
29
|
+
10
|
|
30
|
+
20
|
|
31
|
+
30
|
|
32
|
+
100
|
|
33
|
+
200
|
|
34
|
+
300
|
|
35
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+
900
|
|
36
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+
EOT;
|
|
37
|
+
|
|
38
|
+
$data = explode("\n", $targetText);
|
|
39
|
+
|
|
40
|
+
foreach ($data as $val) {
|
|
41
|
+
if (preg_match("/^[012][0-9]{0,2}$/", $val) || preg_match("/^[3-9][0-9]?$/", $val) ) {
|
|
42
|
+
echo '0' . "\n";
|
|
43
|
+
} else {
|
|
44
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+
echo '1' . "\n";
|
|
45
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+
}
|
|
46
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+
}
|
|
47
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+
```
|
|
48
|
+
> 0
|
|
49
|
+
> 0
|
|
50
|
+
> 0
|
|
51
|
+
> 0
|
|
52
|
+
> 0
|
|
53
|
+
> 0
|
|
54
|
+
> 0
|
|
55
|
+
> 0
|
|
56
|
+
> 0
|
|
57
|
+
> 1
|
|
58
|
+
> 1
|