I want to use regular expression which validate the text which user enter.
我想使用正则表达式来验证用户输入的文本。
/^[a-zA-Z0-9 ]+$/
By above line, we can allow only Alphabetic, Numbers and Space.
在上面一行，我们只允许字母、数字和空格。
What will be regular expression to allow:
什么是正则表达式允许:
alphabetic,
numbers,
space,
period .
hyphen -
exclamation mark !
question mark ?
quotes "
字母，数字，空格，句号。连字符-感叹号!问号?引用“
Except above characters user can not enter other characters.
除上述字符外，用户不能输入其他字符。
Thanks, naveenos
谢谢,naveenos
3 个解决方案
#1
5
You just need to include this extra symbols in the character class you have in your regex.
你只需要在你的正则表达式中包含这个额外的符号。
You can use this regex:
你可以使用这个regex:
/^[a-zA-Z0-9 "!?.-]+$/
#2
3
You're almost there. Try this:
你差不多了。试试这个:
/^[a-zA-Z0-9 .!?"-]+$/
Note that the position of the - character is important. If it appears between two characters (e.g. a-z) it represents a character range. If it appears in at the beginning or end of the character class (or if it's escaped) it represents a literal hyphen character.
注意，角色的位置很重要。如果它出现在两个字符之间(例如a-z)，它表示一个字符范围。如果它出现在字符类的开头或结尾(或者它被转义了)，它表示一个字连字符。
#3
-1
try this pattern
试试这个模式
<?php /^[a-zA-Z0-9 \s\.\!\?\"\-]+$/ ?>
#1
5
You just need to include this extra symbols in the character class you have in your regex.
你只需要在你的正则表达式中包含这个额外的符号。
You can use this regex:
你可以使用这个regex:
/^[a-zA-Z0-9 "!?.-]+$/
#2
3
You're almost there. Try this:
你差不多了。试试这个:
/^[a-zA-Z0-9 .!?"-]+$/
Note that the position of the - character is important. If it appears between two characters (e.g. a-z) it represents a character range. If it appears in at the beginning or end of the character class (or if it's escaped) it represents a literal hyphen character.
注意，角色的位置很重要。如果它出现在两个字符之间(例如a-z)，它表示一个字符范围。如果它出现在字符类的开头或结尾(或者它被转义了)，它表示一个字连字符。
#3
-1
try this pattern
试试这个模式
<?php /^[a-zA-Z0-9 \s\.\!\?\"\-]+$/ ?>