[英]URL Redirect based on input but if input url does not exist do not redirect cant get PHP to work
@themask 您好,感谢您的帮助,我已经扔掉了 php,现在只有这个代码
<script>
document.forms[0].onsubmit =
function() {
var to = document.getElementById('myInput').value;
var ajax = new XMLHttpRequest;
ajax.onreadystate = function() {
if(this.readyState == 4 && this.status != 404) {
window.locaiton.replace(to);
} else {
window.location.replace('http://www.mysite.com/incontinence/protective_underwear/presto_protective_underwear/');
}
};
ajax.open('GET',to);
ajax.send(null);
};
</script>
<form onsubmit="location.href='http://www.mysite.com/coupons/' + document.getElementById('myInput').value; return false;" >
<input type="text" id="myInput" />
<input name="Submit" type="submit" id="Submit" />
</form>
但是,如果使用了错误的代码,它仍然会将我发送到不正确的网址。 它就像是一起跳过了 java。
任何额外的帮助都会很棒。
谢谢你,弥迦
谢谢你,弥迦
尝试使用 get_headers()
$headers = get_headers('http://www.activelifemed.com/incontinence/protective_underwear/presto_protective_underwear/')
if($headers[0] == 'HTTP/1.1 200 OK'){
//exists
}
else{
//doesn't exist
}
您可以使用 JavaScript 进行此操作:
document.forms[0].onsubmit =
function() {
var to = document.getElementById('myInput').value;
var ajax = new XMLHttpRequest;
ajax.onreadystate = function() {
if(this.readyState == 4 && this.status != 404) {
window.locaiton.replace(to);
} else {
window.location.replace('http://www.mysite.com/incontinence/protective_underwear/presto_protective_underwear/');
}
};
ajax.open('GET',to);
ajax.send(null);
};
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