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global recordset

Thread began 3/10/2023 6:11 am by msmoose2400634 | Last modified 3/23/2023 4:25 pm by msmoose2400634 | 224 views | 5 replies

Ray BorduinWebAssist

global is used to bring a variable from a higher scope into a function where it wouldn't normally be defined.

So if you have this on a page"

php:
<?php

$mylocalvariable 
"defined!";

function 
writeLocalVariable() {
  echo(
$mylocalvariable);
}

writeLocalVariable();



This will error: "$mylocalvariable is not defined"

Because by default the scope of the variable means it isn't carried into the function. To solve that problem you can use:

php:
<?php

$mylocalvariable 
"defined!";

function 
writeLocalVariable() {
  global 
$mylocalvariable;
  echo(
$mylocalvariable);
}

writeLocalVariable();



By declaring the variable global in the function it becomes available to use.


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