[Compilation][#3512] PHP.wasm Web

[mho22]

This pull request is part of #3512 and #3518

Compiling PHP.wasm Web.

This is the second attempt since #3513 was merged directly inside #3512 which hit the same issue as when you recompile PHP.wasm directly inside a PR.

[Copilot]

Pull request overview

Note

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Updates the prebuilt PHP.wasm web JS wrappers (JSPI) to newer PHP patch releases and adjusts the generated runtime glue to better handle child-process pipe teardown.

Changes:

• Bump PHP 8.5 web build from 8.5.3 → 8.5.5 (including wasm path and size metadata).
• Bump PHP 8.4 web build from 8.4.18 → 8.4.20 (including wasm path and size metadata).
• Add pipe data listener detachment logic to avoid errors when writing into closed Emscripten FS streams; update lastRefreshed timestamp.

Reviewed changes

Copilot reviewed 8 out of 29 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
packages/php-wasm/web-builds/8-5/jspi/php_8_5.js	Updates wasm reference/version metadata; adds listener cleanup and guarded pipe writes.
packages/php-wasm/web-builds/8-4/jspi/php_8_4.js	Updates wasm reference/version metadata; adds listener cleanup and guarded pipe writes.
packages/php-wasm/web-builds/8-3/jspi/php_8_3.js	Updates dependencies size metadata; adds listener cleanup and guarded pipe writes.
packages/php-wasm/web-builds/8-2/jspi/php_8_2.js	Updates dependencies size metadata; adds listener cleanup and guarded pipe writes.
packages/php-wasm/web-builds/8-1/jspi/php_8_1.js	Adds listener cleanup and guarded pipe writes.
packages/php-wasm/web-builds/8-0/jspi/php_8_0.js	Adds listener cleanup and guarded pipe writes.
packages/php-wasm/web-builds/7-4/jspi/php_7_4.js	Adds listener cleanup and guarded pipe writes.
packages/php-wasm/supported-php-versions.mjs	Refreshes the lastRefreshed timestamp.

Comments suppressed due to low confidence (1)

packages/php-wasm/web-builds/8-5/jspi/php_8_5.js:7030

• Cleanup is only wired to the child process 'exit' event. In Node, spawn/stdio failures emit 'error' (and 'exit' may not fire), which would bypass this teardown and can leak listeners/FDs. Attach the same cleanup to 'error' (and consider 'close') with a shared idempotent cleanup function to ensure resources are released in all termination paths. (Same pattern appears in the other web-build JSPI files updated here.)

			const detachPipeDataListeners = [];
			cp.on('exit', function (code) {
				for (const detach of detachPipeDataListeners) {
					detach();
				}
				for (const fd of [stdoutChildFd, stderrChildFd, stdinChildFd]) {
					if (FS.streams[fd] && !FS.isClosed(FS.streams[fd])) {
						FS.close(FS.streams[fd]);
					}
				}

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