How to call external javascript file in PHP?

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I am learning how to call external javascript files in my PHP code. I got some codes from the internet and tried it but its not working. Can somebody pls give me some advice

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爱一瞬间的悲伤

2020-12-17 05:10

You have not really specified what is not working but i am noticing something in your code.

<html>
<head>
 <script language="JavaScript" src="exer_1.js"></script>
</head>
<body>
 <form name="myform">
  <input type="text" id="input_1" name="input_1" /><br />
  <input type="text" id="input_2" name="input_2" /><br />
 <!-- The following will cause an error -->
  <input type="submit" value="Check!" onclick="javascript:parseTest() return false;" />

<!-- instead use this -->
<input type="submit" value="Check!" onclick="javascript:parseTest(); return false;" />
 </form>
</body>
</html>

semicolon error

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遇见更好的自我

2020-12-17 05:15
I would look into JQuery for a nice javascript framework. Instead of putting javascript code on the button's "onclick" event, with jquery you could do something like:
```
$('#submit').click(function() {
  // whatever code you want to run when submit is clicked.
  alert('Submit clicked');
}
```
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走了就别回头了

2020-12-17 05:18
<script language="JavaScript" src="exer_1.js"></script>

The language attribute is deprecated, use type instead
```
<script type="text/javascript" src="exer_1.js"></script>
```
The correct syntax for inline event binding is
```
<input type="submit" value="Check!" onclick="parseTest(); return false;" />
```
You may want to consider moving the event handler to the form's submit event. Your function could then return false on error or true on success, which can then be used to determine whether the form submission continues or not, eg
```
<form onsubmit="return parseTest()">
```
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长发绾君心

2020-12-17 05:18
```
<script type="text/javascript" src="exer_1.js"></script>
```
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