||Checks for numeric character(s).
||View the most recent code for this function.
||Edit the most recent code for this function.
|revisions||List all versions of code and tests for this function.|
|versions||List all versions of this function.|
|dependencies||List all dependencies and users of this function.|
|get code||Download the latest production version of the code for this function.|
|get dev code||Download the latest development version of the code for this function.|
||View the PHP documentation for this function.|
||View the latest version of the phpjs.org documentation for this function.|
||View the latest phpjs.org implementation of this function.|
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