passing value to javascript

Question

hello please help me out regarding this dunction i want to pass value from the textbox to javascript function and over there i want to store it for other text box . here is the sample code '

<input type="button" value="Add" onClick="addRowToTable(<?php echo $data['pno'];?>);" />

here is the javascript function

function addRowToTable(var a)
{
  ........................
.......................

  b.type = 'text';
  b.value ='over here how can i get this value of a ';  
}

Thanks

Try changing your function head from `function addRowToTable(var a)` -> `function addRowToTable(a)`, does a contain now your value? — Nick Weaver, Mar 22 '11 at 22:40

score 2 · Answer 1 · answered Mar 22 '11 at 22:40

2

IF your value for $data['pno'] is a string, and not a number type, you need to do this :

<input type="button" value="Add" onClick="addRowToTable('<?php echo $data['pno'];?>');" />

because you are still passing the value to addRowToTable as a string literal.

Also, what Nick Weaver said--nix the var in the function signature.

answered Mar 22 '11 at 22:40

Mike Park

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Thanks .It is no . so what else i need to do – umar Mar 22 '11 at 22:43

score 2 · Answer 2 · answered Mar 22 '11 at 22:42

Let json_encode() take care about turning your variable in a JavaScript-compatible string:

<input type="button" value="Add" onclick="addRowToTable('<?php echo htmlspecialchars(json_encode($data['pno'])); ?>');" />

PS: If you are using XHTML it's onclick, not onClick.

score 2 · Accepted Answer · edited May 23 '17 at 09:58

2

Use json_encode() : Pass a PHP string to a JavaScript variable (and escape newlines)

edited May 23 '17 at 09:58

Community

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answered Mar 22 '11 at 22:45

Maxime Pacary

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passing value to javascript

3 Answers3