function aux($a, $b) {
if($a[0] == "_") return -1;
else if($b[0] == "_") return 1;
return ($a < $b) ? -1 : 1;
}
usort($data, "aux");
Array first item specific character [closed]
Domanda
I have a array with much different combinations, now, i want to get the number/code that starts with _
at the begin of the array. I tried much things with usort, but not found the best fix.
Example array:
jhdjfhasjdfh234324
6524kl6j245-68tgh345345
ji43h593408ug8gfsspdkf
_23i490u2458djiofjgoskdgk
4534326jk36hj4j526hkj45t
43u25h6jih245ji3
And output:
_23i490u2458djiofjgoskdgk
jhdjfhasjdfh234324
6524kl6j245-68tgh345345
ji43h593408ug8gfsspdkf
4534326jk36hj4j526hkj45t
43u25h6jih245ji3
And, there can't be more codes that starts with _
.
Thanks.
Soluzione
Altri suggerimenti
Something like this should work
$f = false;
$data = array_filter($data, function($var) use(&$f) {
if (substr($var, 0, 1) == "_") {
$f = $var;
return false;
}
return true;
});
if ($f) {
array_unshift($data, $f);
}
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