change value of input button inside php file

Question

I am trying to write a code of following different user, with inserting values from MySQL table

<td align="center">
<input type="button" name="<?php echo $id; ?>" id="<?php echo $id; ?>" value="suivre"> 
</td>

I want to know if there's any solution after clicking each time on the button and the value change to following

Does this answer your question? [Changing button text onclick](https://stackoverflow.com/questions/10671174/changing-button-text-onclick) — El_Vanja, Mar 15 '21 at 16:51
but my id change, how put $id into document.getElementById() — issou, Mar 15 '21 at 16:56
You don't have to use `getElementById`. See [this comment](https://stackoverflow.com/questions/10671174/changing-button-text-onclick#comment13844521_10671201) for example. — El_Vanja, Mar 15 '21 at 17:00
it's not working, could you write me a code so I can test it — issou, Mar 15 '21 at 17:08

While1 · Accepted Answer · 2021-03-15T17:57:03.820

You are unsuccessful because id attribute cannot start with a digit. Try the following basic examples based on the javascript examples you received here

Example1 with getElementById

<input onclick="change()" type="button" name="<?php echo $id; ?>" id="el_<?php echo $id; ?>" value="suivre"> 
<script>
function change(){
  document.getElementById("el_<?php echo $id; ?>").value="Hello world1";
}
</script>

Example2 without id or getElementById

<input onclick="change(this)" type="button" name="<?php echo $id; ?>" value="suivre"> 
<script>
function change(el){
  el.value="Hello world2";
}
</script>

change value of input button inside php file

1 Answers1