3v4l.org

run code in 500+ PHP versions simultaneously
<?php $str = "value1 , value2 , value3 , value4 , value5 value1 , value2 , value3 , value4 , value5 value1 , value2 , value3 , value4 , value5 value1 , value2 , value3 , value4 , value5"; $arr= explode(PHP_EOL, $str); For($i=0; $i<count($arr); $i++){ If(substr_count($arr[$i], ",") != 4){ $arr[$i+1] = $arr[$i] . " " . $arr[$i+1]; Unset($arr[$i]); } } Echo implode(PHP_EOL, $arr);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
value1 , value2 , value3 , value4 , value5 value1 , value2 , value3 , value4 , value5 value1 , value2 , value3 , value4 , value5 value1 , value2 , value3 , value4 , value5
preferences:
98.12 ms | 1568 KiB | 4 Q