Php bubble sorting

Why can't I find the last one?

Why can't I find the last one?

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Why can't I find the last one?

Make $ I = 0 in the first

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It is estimated that you copied the error and copied $ I to $ j.

J = 0;
J = 1;
J = 2;
// Oh, I accidentally copied the error and only executed it three times.
Exit;

The number of cycles is incorrect. $ j
The second loop should be-$ I, instead of subtracting $ j.

$ Arr = array (, 23, 2); var_dump ($ arr); $ long = count ($ arr); for ($ I = 0; $ I <$ long; $ I ++) {for ($ j = 0; $ j <$ long-$ I-1; $ j ++) {if ($ arr [$ j]> $ arr [$ j + 1]) {$ x = $ arr [$ j + 1]; $ arr [$ j + 1] = $ arr [$ j]; $ arr [$ j] = $ x ;}} var_dump ($ arr );