feat(diagnose-command): query the real PHP runtime in one RPC call

diagnose used to read hardcoded shim stubs, so it described a fictional
runtime: OPENSSL_VERSION_NUMBER was always 0 and tripped the TLSv1.1/1.2
check, PHP_BINARY and OPENSSL_VERSION_TEXT were empty, and the extension,
function and ini probes answered from a fixed table.

The PHP worker gained a `diagnose` entry that returns every fact the
command needs as one PHP array, cached in a OnceLock so the several call
sites share a single round trip. Reading it back needed array support in
the serialize() parser, which in turn lets get_loaded_extensions and
get_all_ini_files return real lists instead of comma-joined strings.

Also fixes the openssl_version message, which dropped strstr()'s
before_needle argument during the port, and check_connectivity's
allow_url_fopen test, which did not follow PHP string truthiness.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/crates/shirabe-php-shim/src/string.rs b/crates/shirabe-php-shim/src/string.rs
index ba45bc8b..dc566bec 100644
--- a/crates/shirabe-php-shim/src/string.rs
+++ b/crates/shirabe-php-shim/src/string.rs
@@ -380,6 +380,16 @@ pub fn strstr(haystack: &str, needle: &str) -> Option<String> {
     haystack.find(needle).map(|i| haystack[i..].to_string())
 }
 
+pub fn strstr3(haystack: &str, needle: &str, before_needle: bool) -> Option<String> {
+    haystack.find(needle).map(|i| {
+        if before_needle {
+            haystack[..i].to_string()
+        } else {
+            haystack[i..].to_string()
+        }
+    })
+}
+
 /// PHP's default trim character mask: " \t\n\r\0\x0B".
 const PHP_TRIM_DEFAULT_CHARS: &[u8] = b" \t\n\r\0\x0B";