Validating Common Form Input - Part 8
Published on 3rd of October 2008. Copyright Tavs Dokkedahl. Displayed 1691 time(s)Table of regexes
Below is a summary of the regular expressions we have used in the tutorial.
| Username |
|---|
Only lowercase letters. Length from 0 to 16./^[a-z]{0,16}$/
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Case-insensitive. Length from 8 to 16./^[a-z]{8,16}$/i
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Case-insensitive and digits. Length from 8 to 16./^[a-z0-9]{8,16}$/i or/^[a-z\d]{8,16}$/i
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Case-insensitive and digits ignoring leading and trailing spaces. Length from 8 to 16./^\s*[a-z\d]{8,16}\s*$/i
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| Names |
A single name, case-insensitive, ignoring leading and trailing spaces. Length 4 to 32./^\s*[a-z]{4,32}\s*$/i
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A single name, case-insensitive, including unicode characters, ignoring leading and trailing spaces. Length 4 to 32./^\s*[a-z\xe6\xf8\xe5]{4,32}\s*$/i
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A single name, case-insensitive, national characters using UTF-8, ignoring leading and trailing spaces. Length 4 to 32./^\s*[a-zæøå]{4,32}\s*$/i
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Multiple names, case-insensitive, ignoring leading and trailing spaces. Length 4 to 32. Note: will validate strings consisting only of spaces. /^\s*[a-z\s]{4,32}\s*$/i
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Multiple names (at least 1), case-insensitive, ignoring leading and trailing spaces. Each name at least 1 characters. Abbreviations and names with hyphens allowed./^\s*[a-z]+([a-z]*\.|\s*\-\s*[a-z]+)?(\s+[a-z]+(\.|\s*\-\s*[a-z]+)?)*\s*$/i;
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| Phone numbers |
A single number, no spaces, ignoring leading and trailing spaces. Length is 8./^\s*\d{8}\s*$/
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A single number, no spaces, ignoring leading and trailing spaces. Length is at least 7./^\s*\d{7,}\s*$/
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Any number of digits, any number of space. Length is at least 1./^(\s*\d+\s*)+$/
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| Passwords |
At least 1 lowercase letter./[a-z]+/
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At least 1 uppercase letter./[A-Z]+/
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At least 1 digit./\d+/
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At least 1 special character including underscore./[\W_]+/
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No spaces. Will return true if a space is found./\s/
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| Website URL |
www. followed by any allowed character 1 through 255 times ending in .com, ignoring leading and trailing spaces./^\s*www\.[a-z\d\-]{1,255}\.com\s*$/
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www. followed by any allowed character 1 through 255 times ending in any name which is 2 through 6 letters long, ignoring leading and trailing spaces./^\s*www\.[a-z\d\-]{1,255}\.[a-z]{2,6}\s*$/
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Any number of subdomains (length 1 to 63), followed by domain name (length 1 to 255), followed by top level domain (length 2 to 6), ignoring leading and trailing spaces./^\s*([a-z\d\-]{1,63}]\.)*[a-z\d\-]{1,255}\.[a-z]{2,6}\s*$/
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Optional http://, followed by any number of subdomains (length 1 to 63), followed by domain name (length 1 to 255), followed by top level domain (length 2 to 6), ignoring leading and trailing spaces./^\s*(http\:\/\/)?([a-z\d\-]{1,63}]\.)*[a-z\d\-]{1,255}\.[a-z]{2,6}\s*$/
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| Email addresses |
Address consisting of a - z, digits and underscore (length 1 to 255), followed by @ and simple domain name, ignoring leading and trailing spaces./^\s*[a-z\d_]{1,255}@[a-z\d\-]{1,255}\.[a-z]{2,6}\s*$/
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Address consisting of a - z, digits and underscore and dot (length 1 to 255), followed by @ and simple domain name, ignoring leading and trailing spaces./^\s*[a-z\d_]+(\.[a-z\d_]+)*@[a-z\d\-]{1,255}\.[a-z]{2,6}\s*$/
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| « Part 7 |
nice table