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<?php $a1 = array('a1','a2','a3','a4'); $result=implode("<br/>\n",$a1)."<br/>"; echo $result; $product_names = apply_filters( 'woocommerce_shipping_package_details_array', $product_names, $package );
Output for git.master, git.master_jit, rfc.property-hooks
a1<br/> a2<br/> a3<br/> a4<br/> Fatal error: Uncaught Error: Call to undefined function apply_filters() in /in/7FMOg:7 Stack trace: #0 {main} thrown in /in/7FMOg on line 7
Process exited with code 255.

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