<xsl:template match="text">
	<xsl:variable name="apos">'</xsl:variable>
	<xsl:variable name="cleaned">
		<xsl:call-template name="_replace_string">
			<xsl:with-param name="string" select="." />
			<xsl:with-param name="find" select="$apos" />
			<xsl:with-param name="replace" select="'&amp;apos;'" />
		</xsl:call-template>
	</xsl:variable>
	<xsl:value-of select="$cleaned" />
</xsl:template>

<xsl:template name="_replace_string">
	<xsl:param name="string" select="''"/>
	<xsl:param name="find" select="''"/>
	<xsl:param name="replace" select="''"/>
	<xsl:choose>
		<xsl:when test="contains($string,$find)">
			<xsl:value-of select="concat(substring-before($string,$find),$replace)"/>
			<xsl:call-template name="_replace_string">
				<xsl:with-param name="string" select="substring-after($string,$find)"/>
				<xsl:with-param name="find" select="$find"/>
				<xsl:with-param name="replace" select="$replace"/>
			</xsl:call-template>
		</xsl:when>
		<xsl:otherwise>
			<xsl:value-of select="$string"/>
		</xsl:otherwise>
	</xsl:choose>
</xsl:template>

replacing single quotes with its (double-escaped) entity, for use of a text within xsl.

Replace single quotes

php

XSLT