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| Examples | Mac & Win | Server | Client | Guides | Statistic | FMM | Blog | Deprecated | Old | |
PHP.ExistsVariable
Checks if a variable exists.
| Component | Version | macOS | Windows | Linux | Server | iOS SDK |
| PHP | 2.9 | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes | ❌ No |
Deprecated
This function was deprecated.
MBS( "PHP.ExistsVariable"; VariableName ) More
Parameters
| Parameter | Description | Example |
|---|---|---|
| VariableName | the name of the variable. | $name |
Result
Returns true if the variable exists, false if it does not.
Description
Checks if a variable exists.Examples
Check if variable FilePath exists:
$r = MBS( "PHP.ExistsVariable"; "FilePath" )
Check if the PHP variable with the name in the FileMaker variable FilePath exists:
$r = MBS( "PHP.ExistsVariable"; $FilePath )
Blog Entries
This function checks for a paid license.
Created 18th August 2014, last changed 23th January 2023
