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[英]How do I pass HTML radio button value to a PHP variable using Javascript and Ajax?
[英]How do I pass the name of the radio button to the Javascript for the onclick event?
我有一个包含 n 行的 html 表。 每行都有一个名称和 2 个单选按钮。 如果我单击一个单选按钮,我想显示一个说明投票计数的警报。 我应该如何将单选按钮的名称传递给 Javascript 以及我应该如何进行计数?
这是PHP部分:
list($cols,) = $xlsx->dimension();
$var=0;
foreach( $xlsx->rows() as $k => $r) {
$var++;
echo '<tr>';
echo '<td>'.$k.'</td>';
echo '<td>'.( (isset($r[0])) ? $r[0] : ' ' ).'</td>';
echo '<td><Input type = "Radio" Name ="vote'.$var.'" value= "pacada" onclick = "AddPacada()"></td>';
echo '<td><Input type = "Radio" Name ="vote'.$var.'" value= "toledo" onclick = "AddToledo()"></td>';
echo '</tr>';
这是 Javascript 部分:
function AddPacada(){
if(document.tally.pacada.checked == true){
alert("You have clicked on Pacada.");
}
}function AddToledo(){
if(document.tally.toledo.checked == true){
alert("You have clicked on Toledo.");
}
}
您只需将其作为参数传递:
... onclick = "AddPacada(this)" ...
^^^^
/* And in your function: */
function AddPacada(radio) {
alert(radio.value);
}
改变你onclick
在你的PHP代码中onclick=tally(this)
然后这个 javascript 将提醒当前选择的总数:
<script>
var selections = new Array(); //keep track of the selections
function tally(e) {
val = e.value;
name = e.name;
selections[name] = val; //an associative array or "hash"
var totals = new Array();
for (var key in selections) {
var selection=selections[key];
if(totals[selection] == undefined) { //set to 1 if not already initialized
totals[selection] = 1;
} else {
totals[selection] += 1;
}
}
alert(val + " has been selected " + totals[val] + " times");
}
</script>
在风格方面,我会尝试发出以下 HTML:
<input type="radio" name="var1" value="a" onclick="tally(this)"/>
<input type="radio" name="var1" value="b" onclick="tally(this)"/>
<input type="radio" name="var2" value="a" onclick="tally(this)"/>
<input type="radio" name="var2" value="b" onclick="tally(this)"/>
注意间距和大小写。
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