html表单编号验证php
我想验证表单中的数字。表格应仅以5 6 7 8开头的数字通过,长度应为8。这是我的密码html表单编号验证php,php,html,forms,validation,Php,Html,Forms,Validation,我想验证表单中的数字。表格应仅以5 6 7 8开头的数字通过,长度应为8。这是我的密码 <?php session_start(); $fecha=date("Y.m.d"); $numero = $_SESSION["numero"]; if(filter_var($numero, strlen($numero ==8),FILTER_VALIDATE_INT) AND in_array(substr($numero, 0, 1), array(5,6, 7, 8))) { $c
<?php
session_start();
$fecha=date("Y.m.d");
$numero = $_SESSION["numero"];
if(filter_var($numero, strlen($numero ==8),FILTER_VALIDATE_INT) AND in_array(substr($numero, 0, 1), array(5,6, 7, 8))) {
$conexion = mysql_connect("server","user","pass") or die (mysql_error()); mysql_select_db('db',$conexion) or die(mysql_error());
$result = mysql_query("INSERT INTO `db`.`Incoming` (ID ,MsgExternalID ,MsgFrom ,MsgTo ,MsgBody ,MsgBodyType ,MsgTag ,MsgPriority ,MsgDLRRequested ,MsgOriginatedTime ,MsgScheduledTime ,MsgExpiringTime) VALUES (NULL , '0', '+506$numero', '+8384', '', '0', '', NULL , NULL , NULL , NULL , NULL)", $conexion);
if($result!=NULL)
{
header('Location: page.php');
}
}else{
echo '<script language="javascript">';
echo 'alert("Ingrese un número valido");';
echo 'history.back()';
echo '</script>';
}
?>
如果我理解正确只想验证数字?
试试这个基本的正则表达式
if (preg_match('/^[5-8][\d]{7}$/', $numero ))
{
//DO OPERATIONS HERE...
}
您的代码看起来容易受到sql注入的攻击。使用PDO或mysqli,但不要使用mysql:)谢谢您的建议:)