count array index foreach in php

&lt;?php
$a[0]&nbsp;=&nbsp;1;
$a[1]&nbsp;=&nbsp;3;
$a[2]&nbsp;=&nbsp;5;
var_dump(count($a));

$b[0]&nbsp;&nbsp;=&nbsp;7;
$b[5]&nbsp;&nbsp;=&nbsp;9;
$b[10]&nbsp;=&nbsp;11;
var_dump(count($b));
?&gt;

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count array index foreach in php

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