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<InstallationExamples>
^XSLLast updated: Mon, 26 Oct 2026

Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

XSL_CLONE_AUTO (int)

XSL_CLONE_NEVER (int)

XSL_CLONE_ALWAYS (int)

LIBXSLT_VERSION (int)

libxslt version like 10117.

LIBXSLT_DOTTED_VERSION (string)

libxslt version like 1.1.17.

LIBEXSLT_VERSION (int)

libexslt version like 813.

LIBEXSLT_DOTTED_VERSION (string)

libexslt version like 1.1.17.

XSL_SECPREF_NONE (int)

Deactivate all security restrictions.

XSL_SECPREF_READ_FILE (int)

Disallows reading files.

XSL_SECPREF_WRITE_FILE (int)

Disallows writing files.

XSL_SECPREF_CREATE_DIRECTORY (int)

Disallows creating directories.

XSL_SECPREF_READ_NETWORK (int)

Disallows reading network files.

XSL_SECPREF_WRITE_NETWORK (int)

Disallows writing network files.

XSL_SECPREF_DEFAULT (int)

Disallows all write access, i.e. a bitmask of XSL_SECPREF_WRITE_NETWORK | XSL_SECPREF_CREATE_DIRECTORY | XSL_SECPREF_WRITE_FILE.


<InstallationExamples>
^XSLLast updated: Mon, 26 Oct 2026