PHP foreach inside loop on array that added inside the loop
i am php newbie,i practice on arrays.
I created a foreach on some string that i converted to array,then inside the foreach i added more 2 arrays one before the end of the loop and one random.
here the code:
<?php
//Some string to practice on
$links = " http://hi.co.il<br>
?????? ht tp://hi.co.il<br>
????? http://hi.co.il<br>
http://hi.co.il<br>
http://hi.co.il<br>
http://mega.co.il<br>
http://hi.co.il";
$links = explode('<br>',trim($links));
$currenturl = array("http://mega.co.il","http://mega.co.il/","http://mega.co.il/#");
$i = 0;
$len = count($links);
$rand = rand(0,$len-1);
foreach($links as $key => $value) {
$i++;//Practice counter
$value = preg_replace('/s+/', '', $value);//Clean all whitespaces
$links[$key] = strstr($value, 'http');//Cut the value from the left and return only the right.
if(in_array($value,$currenturl)) {
unset($links[$key]);
}
//Practice to my self
if(is_array($value) == false){
$links[$rand] = array("dfd","dfdf","dfdf");
}
//just a practice to add a array to a value before the end of the loop.
if($i == $len-2){
$links[$key] = array( array("rose", 1.25 , 15),
array("daisy", 0.75 , 25),
array("orchid", 1.15 , 7)
);
}
//Not working , this is the main question how to foreach on value that is a array
if(is_array($value)){
foreach($value[$key] as $key => $val){
echo 'this is second foreach echo';
echo $val;
}
}
}
$links = array_filter($links);// Clean empty array values
$links = array_values($links);//Reindex array keys
echo '<pre>';
print_r($links);
echo '</pre>';
?>
This output:
Array
(
[0] => http://hi.co.il
[1] => Array
(
[0] => dfd
[1] => dfdf
[2] => dfdf
)
[2] => http://hi.co.il
[3] => http://hi.co.il
[4] => Array
(
[0] => Array
(
[0] => rose
[1] => 1.25
[2] => 15
)
[1] => Array
(
[0] => daisy
[1] => 0.75
[2] => 25
)
[2] => Array
(
[0] => orchid
[1] => 1.15
[2] => 7
)
)
[5] => http://hi.co.il
)
The question why is_array($value) no working because its always return false even when a value is array? And how i foreach and the arrays i added inside the loop ? Its possible ?
Thanks .
is_array返回false，因为$ value是字符串，而不是数组。
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