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Add a notice to spl_object_hash() return values comparison #2607

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Jul 28, 2023
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Add a notice to spl_object_hash() return values comparison #2607

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8 changes: 8 additions & 0 deletions reference/spl/functions/spl-object-hash.xml
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Expand Up @@ -70,6 +70,14 @@ $storage[$id] = $object;
When an object is destroyed, its hash may be reused for other objects.
</para>
</note>
<note>
<para>
Object hashes should be compared for identity with <code>===</code> and
<code>!==</code>, because the returned hash could be a
<link linkend="language.types.numeric-strings">numeric string</link>.
For example: <literal>0000000000000e600000000000000000</literal>.
</para>
</note>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
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