Commonly used regular expression functions in php_PHP tutorial

Commonly used regular expression functions in PHP. We have many regular expression codes here, including judging Chinese regular expressions, digital and alphabetic regular expressions, character regular expressions, digital regular expressions, email regular expressions, phone number regular expressions, and mobile phone number regular expressions. Expression test, zip code regular expression test, /url regular expression test, etc.

Commonly used regular expression functions in PHP tutorials
We have a lot of regular expression codes here, including judging Chinese regular expressions, digital and alphabetical regular expressions, character regular expression tests, digital regular expression tests, email regular expressions, and phone numbers Regular expression test, mobile phone number regular expression test, zip code regular expression test, /url regular expression test, etc.
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function funcchinese($str,$num1='',$num2='')//Judge Chinese regular rules
{
if($num1!='' and $num2! =''){
return (preg_match("/^([x81-xfe][x40-xfe]){".$num1.",".$num2."}$/",$str)) ?true:false;
}else{
return (!eregi("[^x80-xff]","$str"))?true:false;
}
}

function funcstrnum($str,$num1='',$num2='') //Numbers and letters are regular
{
if($num1!='' and $num2!=''){
return (preg_match("/^[^0-9a-za-z_@!.-]{".$num1.",".$num2."}$/",$str))?true: false;
}else{
return (preg_match("/^[^0-9a-za-z_@!.-]/",$str))?true:false;
}
}
//Commonly used regular expressions

function funcstr($str,$num1='',$num2='') //Character regular expressions
{
if ($num1!='' and $num2!=''){
return (preg_match("/^[a-za-z]{".$num1.",".$num2."}$/ ",$str))?true:false;
}else{
return (preg_match("/^[a-za-z]/",$str))?true:false;
}
}

function funcnum($str,$num1='',$num2='')//Number regular expression try
{
if($num1!='' and $num2!=''){
return (preg_match("/^[0-9]{".$num1.",".$num2."}$/",$str))?true:false ;
}else{
return (preg_match("/^[0-9]/",$str))?true:false;
}
}

function funccard ($str)//
{
return (preg_match('/(^([d]{15}|[d]{18}|[d]{17}x)$)/',$ str))?true:false;
}

function funcemail($str)//Mailbox regular expression
{
return (preg_match('/^[_.0-9a -z-a-z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,4}$/',$str))?true:false;
}

function funcphone($str)//Telephone number regular expression try
{
return (preg_match("/^(((d{3}))|(d{3}- ))?((0d{2,3})|0d{2,3}-)?[1-9]d{6,8}$/",$str))?true:false;
}

function funcmtel($str)//Mobile phone number regular expression try
{
return (preg_match("/(?:13d{1}|15[03689])d{8}$ /",$str))?true:false;
}

function funczip($str)//Postal code regular expression try
{
return (preg_match("/^[0 -9]d{5}$/",$str))?true:false;
}

function funcurl($str)//url regular expression try
{
return (preg_match("/^http://[a-za-z0-9]+.[a-za-z0-9]+[/=?%-&_~`@[]':+!]*( [^""])*$/",$str))?true:false;
}

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