PHP array printing using a loop - php

Question

If I know the length of an array, how do I print each of its values in a loop?

Answer 1

$array = array("Jonathan","Sampson");
foreach($array as $value) {
print $value;
}
or
$length = count($array);
for ($i = 0; $i < $length; $i++) {
print $array[$i];
}

Answer 2

Use a foreach loop, it loops through all the key=>value pairs:
foreach($array as $key=>$value){
print "$key holds $value\n";
}
Or to answer your question completely:
foreach($array as $value){
print $value."\n";
}

Answer 3

for using both things variables value and kye
foreach($array as $key=>$value){
print "$key holds $value\n";
}
for using variables value only
foreach($array as $value){
print $value."\n";
}
if you want to do something repeatedly until equal the length of array us this
// for loop
for($i = 0; $i < count($array); $i++) {
// do something with $array[$i]
}
Thanks!

Answer 4

Here is example:
$array = array("Jon","Smith");
foreach($array as $value) {
echo $value;
}

Answer 5

foreach($array as $key => $value) echo $key, ' => ', $value;

Answer 6

I also find that using <pre></pre> tags around your var_dump or print_r results in a much more readable dump.

Answer 7

either foreach:
foreach($array as $key => $value) {
// do something with $key and $value
}
or with for:
for($i = 0, $l = count($array); $i < $l; ++$i) {
// do something with $array[$i]
}
obviously you can only access the keys when using a foreach loop.
if you want to print the array (keys and) values just for debugging use var_dump or print_r

Answer 8

while(#$i++<count($a))
echo $a[$i-1];
3v4l.org

Answer 9

Another advanced method is called an ArrayIterator. It’s part of a wider class that exposes many accessible variables and functions. You are more likely to see this as part of PHP classes and heavily object-oriented projects.
$fnames = ["Muhammed", "Ali", "Fatimah", "Hasan", "Hussein"];
$arrObject = new ArrayObject($fnames);
$arrayIterator = $arrObject->getIterator();
while( $arrayIterator->valid() ){
echo $arrayIterator->current() . "<br />";
$arrayIterator->next();
}

Answer 10

If you're debugging something and just want to see what's in there for your the print_f function formats the output nicely.

Answer 11

Additionally, if you are debugging as Tom mentioned, you can use var_dump to see the array.

Answer 12

Foreach before foreach: :)
reset($array);
while(list($key,$value) = each($array))
{
// we used this back in php3 :)
}