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--- uphp:functions:is_array [2017/05/08 14:29]
jeff
+++ uphp:functions:is_array [2021/09/13 05:57]
@@ Line 1: / Line 1: @@
-======is_array======
-<badge>WMPRO, WMMINI FW >= 1.0</badge> <badge>WMMEGA FW >= 2.0</badge>
-Check if a variable is an <html><b><span style="color:green">array<span style="color:black"></b></html>
-====Description====
-<well size="sm">
-<html>
-<span style="font-size:125%;color:green">int
-<span style="color:black">is_array (
-<span style="color:green">mixed
-<span style="color:blue">$variable
-<span style="color:black">)
-</html>
-</well>
-Check to see if a variable or value is of type <html><b><span style="color:green">array<span style="color:black"></b></html>
-====Parameter====
-<html><b><span style="color:blue">$variable<span style="color:black"></b></html>:  Variable or expression to be evaluated
-====Return Value====
-<html><b><span style="color:green">Integer<span style="color:black"></b>:  1 (true) if <b><span style="color:green">array<span style="color:black"></b>, 0 (false) if not an array</html>
-====Examples====
-<code php>
-<?
-  $x=1;
-  print(is_array($x)); // outputs 0
-  $y=array("one");
-  print(is_array($y)); // outputs 1
-?>
-</code>
-====Notes====
-This function checks ONLY the type of the variable, not the data that it holds!
-====See Also====
-[[is_int()]] - Check if a variable is an <html><b><span style="color:green">integer<span style="color:black"></b></html>
-[[is_float()]] - Check if a variable is a <html><b><span style="color:green">float<span style="color:black"></b></html>
-[[is_string()]] - Check if a variable is a <html><b><span style="color:green">string<span style="color:black"></b></html>
-[[is_numeric()]] - <html>Check if a value is numeric (<b><span style="color:green">int<span style="color:black"></b>, <b><span style="color:green">float<span style="color:black"></b> or numeric <b><span style="color:green">string<span style="color:black"></b>)</html>
-[[isset()]] - Check if a variable exists
-[[uphp:variables|uPHP Variable Types and Limits]]
-[[array()]] - Create an <html><b><span style="color:green">array<span style="color:black"></b></html>, with optional values

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