Eg: I have an Following array$array = array("abc","def","ghi", "jkl", "mno", "abc", "pqr", "stu", "vwy", "abc");
And i need to split this array for every occurrences of a string called "abc" I have tried array_chunk not helped for me..
3 Answers
A simple way using foreach. Just going through all element in an array and split it on the condition.
<?PHP
$array = array("abc","def","ghi", "jkl", "mno", "abc", "pqr", "stu", "vwy", "abc");
$acc_arra = array();
$i=0;
foreach($array as $occurrences)
{
if($occurrences=='abc') //checking occurance
{
$i++;
}
else
{
if(!$acc_arra) //To start array from 0(if first element is 'abc')
{
$i=0;
}
$acc_arra[$i][]=$occurrences; //add to array
}
}
print_r($acc_arra);
OUTPUT
Array
(
[0] => Array
(
[0] => def
[1] => ghi
[2] => jkl
[3] => mno
)
[1] => Array
(
[0] => pqr
[1] => stu
[2] => vwy
)
)
5 Comments
Barmar
Your top-level array elements should start at 0, not 1. Otherwise, looks good to me.
Barmar
Why not just initialize
$i to -1 instead of adding a special case?
Fasil kk
then the array will start from -1, if first element not 'abc'
Barmar
You're right. I was thinking that there would always be
"abc" at the beginning of the array, but we don't know if that's guaranteed.
Ryan
@Barmar can you check out my answer and tell me what you think? please and thank you.
There no direct function in php to split array using values, so please use foreach loop for splitting the array. Please find a sample function to split array using values.
<?php
$array = array("abc","def","ghi", "jkl", "mno", "abc", "pqr", "stu", "vwy", "abc");
function splitArray($array, $value = '') {
$returnArray = array();
$inc = 0;
if(is_array($array)) {
foreach($array as $arrayValue) {
if($value == $arrayValue) {
$inc++;
}
$returnArray[$inc][] = $arrayValue;
}
}
return $returnArray;
}
$finalArray = splitArray($array, 'abc');
print_r($finalArray);
?>
Comments
Here is a way to do it by first getting the array elements into a string. Then you can split it up using a regex.
Simple Way
<?php
$array = array("abc","def","ghi", "jkl", "mno", "abc", "pqr", "stu", "vwy", "abc");
$string = implode(' ', $array);
$a = preg_split("/[abc]+/", $string);
print_r($a);
Array
(
[0] =>
[1] => def ghi jkl mno
[2] => pqr stu vwy
[3] =>
)
Complex Way
<?php
$array = array("abc","def","ghi", "jkl", "mno", "abc", "pqr", "stu", "vwy", "abc");
$string = implode(' ', $array);
$a = preg_split("/[abc]+/", $string);
$b = array();
$d = array();
for($i = 0; $i < count($a); $i++) {
if($a[$i] == NULL) continue;
$b[] = $a[$i];
}
for($i = 0; $i < count($b); $i++) {
//echo $b[$i] . PHP_EOL;
$c = explode(' ', $b[$i]);
for($ii = 0; $ii < count($c); $ii++) {
if($c[$ii] == NULL) continue;
$d[$i][] = $c[$ii];
}
}
print_r($d);
output
Array
(
[0] => Array
(
[0] => def
[1] => ghi
[2] => jkl
[3] => mno
)
[1] => Array
(
[0] => pqr
[1] => stu
[2] => vwy
)
)
foreach?