Ukongeza kwiimpawu ezintsha ezinje ngohlobo lokuthintela iintlobo zeedatha zesikali okanye ukusebenza okuphuculweyo , i-PHP 7 ikwazisa ulwandiso olutsha olunoluncedo. "Umsebenzi weSpacehip" ekugqibeleni uye wayenza kwilizwe le-PHP (Inkqubo kaRuby kunye nePerl beyazi ixesha elide). \($a <=> $b\) ubuya \(0\) ukuba kwaye kuphela ukuba zombini ii-opharetha ziyalingana, \(1\) ukuba ekhohlo inkulu kwaye \(-1\) ngenye indlela.
Ngokuhambelana, lo mqhubi mtsha uhambelana nomsebenzi wophawu \(sgn(xy)\) owaziwa kwimathematics. Oku kuthetha ukuba abaqhubi bokuthelekisa abakhoyo banokutolika besebenzisa is syntax esitsha:
| \($a < $b\) | \(($a <=> $b) === -1\) |
| \($a <= $b\) | \(($a <=> $b)\) !\(== 1\) |
| \($a == $b\) | \(($a <=> $b) === 0\) |
| \($a\) !\(= $b\) | \(($a <=> $b)\) !\(== 0\) |
| \($a >= $b\) | \(($a <=> $b)\) !\(== -1\) |
| \($a > $b\) | \(($a <=> $b) === 1\) |
Imigaqo efanayo iyasebenza njengabaqhubi bokuthelekisa (umzekelo \([1,2,3] <=>[1,2,1]\) ilingana \(1\) ).