Examples of common php form verification usage

Examples of common php form verification usage

This example describes common php form verification usage. Share it with you for your reference. The details are as follows:

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129

<? Php /** * Page function: common form verification classes * Author: Happy with the wind * QQ: 276624915 */ Class class_post { // Verify whether it is a combination of letters and numbers with a specified length Function fun_text1 ($ num1, $ num2, $ str) { Return (preg_match ("/^ [a-zA-Z0-9] {". $ num1. ",". $ num2. "} $/", $ str ))? True: false; } // Verify whether it is a number of the specified length Function fun_text2 ($ num1, $ num2, $ str) { Return (preg_match ("/^ [0-9] {". $ num1. ",". $ num2. "} $/I", $ str ))? True: false; } // Verify whether the Chinese character is of the specified length Function fun_font ($ num1, $ num2, $ str) { // Preg_match ("/^ [\ xa0-\ xff] {1, 4} $/", $ string );   Return (preg_match ("/^ ([\ x81-\ xfe] [\ x40-\ xfe]) {". $ num1 .",". $ num2. "} $/", $ str ))? True: false; } // Verify the ID card number Function fun_status ($ str) { Return (preg_match ('/(^ ([\ d] {15} | [\ d] {18} | [\ d] {17} x) $ )/', $ str ))? True: false; } // Verify the email address Function fun_email ($ str ){ Return (preg_match ('/^ [_\. 0-9a-z-] + @ ([0-9a-z] [0-9a-z-] + \.) + [a-z] {2, 4} $/', $ str ))? True: false; } // Verify the phone number Function fun_phone ($ str) { Return (preg_match ("/^ (\ d {3} \) | (\ d {3 }\-))? (\ (0 \ d {2, 3} \) | 0 \ d {2, 3 }-)? [1-9] \ d {6, 7} $/", $ str ))? True: false; } // Verify the zip code Function fun_zip ($ str) { Return (preg_match ("/^ [1-9] \ d {5} $/", $ str ))? True: false; } // Verify the url Function fun_url ($ str) { Return (preg_match ("/^ http: \ // [A-Za-z0-9] + \. [A-Za-z0-9] + [\/= \? % \-&_~ '@ [\] \': +!] * ([^ <> \ "\"]) * $/", $ Str ))? True: false; } // The data warehouse receiving escape special character input value can be a string or a one-dimensional array Function data_join (& $ data) { If (get_magic_quotes_gpc () = false) { If (is_array ($ data )) { Foreach ($ data as $ k => $ v) { $ Data [$ k] = addslashes ($ v ); } } Else { $ Data = addslashes ($ data ); } } Return $ data; } // Data warehouse restore special character input value can be a string or one/two-dimensional array Function data_revert (& $ data) { If (is_array ($ data )) { Foreach ($ data as $ k1 => $ v1) { If (is_array ($ v1 )) { Foreach ($ v1 as $ k2 => $ v2) { $ Data [$ k1] [$ k2] = stripslashes ($ v2 ); } } Else { $ Data [$ k1] = stripslashes ($ v1 ); } } } Else { $ Data = stripslashes ($ data ); } Return $ data; } // The data display restoration data format is mainly used for the input value of the content output to be a string or A/two-dimensional array. // Data_revert () should be performed before this method is executed, and the form content does not need to be restored Function data_show (& $ data) { If (is_array ($ data )) { Foreach ($ data as $ k1 => $ v1) { If (is_array ($ v1 )) { Foreach ($ v1 as $ k2 => $ v2) { $ Data [$ k1] [$ k2] = nl2br (htmlspecialchars ($ data [$ k1] [$ k2]); $ Data [$ k1] [$ k2] = str_replace ("", "", $ data [$ k1] [$ k2]); $ Data [$ k1] [$ k2] = str_replace ("\ n", "<br> \ n", $ data [$ k1] [$ k2]); } } Else { $ Data [$ k1] = nl2br (htmlspecialchars ($ data [$ k1]); $ Data [$ k1] = str_replace ("", "", $ data [$ k1]); $ Data [$ k1] = str_replace ("\ n", "<br> \ n", $ data [$ k1]); } } } Else { $ Data = nl2br (htmlspecialchars ($ data )); $ Data = str_replace ("", "", $ data ); $ Data = str_replace ("\ n", "<br> \ n", $ data ); } Return $ data; } } ?>

I hope this article will help you with php programming.