language/control-structures/goto.xml
7204e2dbb9b484c8b67bb5ad4a93fa1369c5b317
7204e2dbb9b484c8b67bb5ad4a93fa1369c5b317
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@@ -10,8 +10,12 @@
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<imageobject>
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<imagedata fileref="en/language/figures/xkcd-goto.png" format="PNG"/>
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</imageobject>
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<caption>
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<simpara>
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Image courtesy of <link xlink:href="&url.xkcd;292">xkcd</link>
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</simpara>
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</caption>
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</mediaobject>
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Image courtesy of <link xlink:href="&url.xkcd;292">xkcd</link>
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</para>
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<para>
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The <literal>goto</literal> operator can be used to jump to another
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@@ -31,11 +35,13 @@
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<programlisting role="php">
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<![CDATA[
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<?php
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+
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goto a;
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echo 'Foo';
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a:
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echo 'Bar';
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?>
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]]>
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</programlisting>
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@@ -53,14 +59,18 @@ Bar
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<programlisting role="php">
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<![CDATA[
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<?php
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-
for($i=0,$j=50; $i<100; $i++) {
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-
while($j--) {
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-
if($j==17) goto end;
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-
}
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for ($i = 0, $j = 50; $i < 100; $i++) {
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while ($j--) {
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if ($j == 17) {
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goto end;
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}
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}
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}
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echo "i = $i";
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end:
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echo 'j hit 17';
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?>
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]]>
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</programlisting>
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@@ -78,13 +88,15 @@ j hit 17
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<programlisting role="php">
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<![CDATA[
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<?php
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goto loop;
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-
for($i=0,$j=50; $i<100; $i++) {
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-
while($j--) {
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-
loop:
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-
}
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for ($i = 0, $j = 50; $i < 100; $i++) {
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while ($j--) {
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loop:
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}
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}
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echo "$i = $i";
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?>
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]]>
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</programlisting>
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