[Sync EN] strlen, strstr, strcasecmp, strncasecmp#44

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lacatoire wants to merge 3 commits intophp:masterfrom

lacatoire:sync-en/strings-compare-lookup

Commits on May 4, 2026

[Sync EN] strlen, strstr, strcasecmp, strncasecmp
lacatoire
committed
Inline return-value description instead of using strings.comparison.return
lacatoire
committed
Restore -1/1/0 wording, matching strcmp/strncmp/strnatcmp convention
lacatoire
committed