现在是这样的

<script> Sfdump = window.Sfdump || (function (doc) { var refStyle = doc.createElement('style'), rxEsc = /([.*+?^${}()|\[\]\/\\])/g, idRx = /\bsf-dump-\d+-ref[012]\w+\b/, keyHint = 0 <= navigator.platform.toUpperCase().indexOf('MAC') ? 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a.title+'\n[' : '[')+keyHint+'+click] Expand all children'; a.innerHTML += '<span>&#9660;</span>'; a.className += ' sf-dump-toggle'; x = 1; if ('sf-dump' != elt.parentNode.className) { x += elt.parentNode.getAttribute('data-depth')/1; } elt.setAttribute('data-depth', x); var className = elt.className; elt.className = 'sf-dump-expanded'; if (className ? 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state.next() : state.previous(); searchInput.focus(); collapseAll(root); showCurrent(state); }) }); addEventListener(root, 'keydown', function (e) { var isSearchActive = !/\bsf-dump-search-hidden\b/.test(search.className); if ((114 === e.keyCode && !isSearchActive) || (isCtrlKey(e) && 70 === e.keyCode)) { /* F3 or CMD/CTRL + F */ e.preventDefault(); search.className = search.className.replace(/\bsf-dump-search-hidden\b/, ''); searchInput.focus(); } else if (isSearchActive) { if (27 === e.keyCode) { /* ESC key */ search.className += ' sf-dump-search-hidden'; e.preventDefault(); resetHighlightedNodes(root); searchInput.value = ''; } else if ( (isCtrlKey(e) && 71 === e.keyCode) /* CMD/CTRL + G */ || 13 === e.keyCode /* Enter */ || 114 === e.keyCode /* F3 */ ) { e.preventDefault(); e.shiftKey ? state.previous() : state.next(); collapseAll(root); showCurrent(state); } } }); } if (0 >= options.maxStringLength) { return; } try { elt = root.querySelectorAll('.sf-dump-str'); len = elt.length; i = 0; t = []; while (i < len) t.push(elt[i++]); len = t.length; for (i = 0; i < len; ++i) { elt = t[i]; s = elt.innerText || elt.textContent; x = s.length - options.maxStringLength; if (0 < x) { h = elt.innerHTML; elt[elt.innerText ? 'innerText' : 'textContent'] = s.substring(0, options.maxStringLength); elt.className += ' sf-dump-str-collapse'; elt.innerHTML = '<span class=sf-dump-str-collapse>'+h+'<a class="sf-dump-ref sf-dump-str-toggle" title="Collapse"> &#9664;</a></span>'+ '<span class=sf-dump-str-expand>'+elt.innerHTML+'<a class="sf-dump-ref sf-dump-str-toggle" title="'+x+' remaining characters"> &#9654;</a></span>'; } } } catch (e) { } }; })(document); </script><style> pre.sf-dump { display: block; white-space: pre; padding: 5px; } pre.sf-dump:after { content: ""; visibility: hidden; display: block; height: 0; clear: both; } pre.sf-dump span { display: inline; } pre.sf-dump .sf-dump-compact { display: none; } pre.sf-dump abbr { text-decoration: none; border: none; cursor: help; } pre.sf-dump a { text-decoration: none; cursor: pointer; border: 0; outline: none; color: inherit; } pre.sf-dump .sf-dump-ellipsis { display: inline-block; overflow: visible; text-overflow: ellipsis; max-width: 5em; white-space: nowrap; overflow: hidden; vertical-align: top; } pre.sf-dump .sf-dump-ellipsis+.sf-dump-ellipsis { max-width: none; } pre.sf-dump code { display:inline; padding:0; background:none; } .sf-dump-str-collapse .sf-dump-str-collapse { display: none; } .sf-dump-str-expand .sf-dump-str-expand { display: none; } .sf-dump-public.sf-dump-highlight, .sf-dump-protected.sf-dump-highlight, .sf-dump-private.sf-dump-highlight, .sf-dump-str.sf-dump-highlight, .sf-dump-key.sf-dump-highlight { background: rgba(111, 172, 204, 0.3); border: 1px solid #7DA0B1; border-radius: 3px; } .sf-dump-public.sf-dump-highlight-active, .sf-dump-protected.sf-dump-highlight-active, .sf-dump-private.sf-dump-highlight-active, .sf-dump-str.sf-dump-highlight-active, .sf-dump-key.sf-dump-highlight-active { background: rgba(253, 175, 0, 0.4); border: 1px solid #ffa500; border-radius: 3px; } pre.sf-dump .sf-dump-search-hidden { display: none; } pre.sf-dump .sf-dump-search-wrapper { float: right; font-size: 0; white-space: nowrap; max-width: 100%; text-align: right; } pre.sf-dump .sf-dump-search-wrapper > * { vertical-align: top; box-sizing: border-box; height: 21px; font-weight: normal; border-radius: 0; background: #FFF; color: #757575; border: 1px solid #BBB; } pre.sf-dump .sf-dump-search-wrapper > input.sf-dump-search-input { padding: 3px; height: 21px; font-size: 12px; border-right: none; width: 140px; border-top-left-radius: 3px; border-bottom-left-radius: 3px; color: #000; } pre.sf-dump .sf-dump-search-wrapper > .sf-dump-search-input-next, pre.sf-dump .sf-dump-search-wrapper > .sf-dump-search-input-previous { background: #F2F2F2; outline: none; border-left: none; font-size: 0; line-height: 0; } pre.sf-dump .sf-dump-search-wrapper > .sf-dump-search-input-next { border-top-right-radius: 3px; border-bottom-right-radius: 3px; } pre.sf-dump .sf-dump-search-wrapper > .sf-dump-search-input-next > svg, pre.sf-dump .sf-dump-search-wrapper > .sf-dump-search-input-previous > svg { pointer-events: none; width: 12px; height: 12px; } pre.sf-dump .sf-dump-search-wrapper > .sf-dump-search-count { display: inline-block; padding: 0 5px; margin: 0; border-left: none; line-height: 21px; font-size: 12px; }pre.sf-dump, pre.sf-dump .sf-dump-default{background-color:#fff; color:#222; line-height:1.2em; font-weight:normal; font:12px Monaco, Consolas, monospace; word-wrap: break-word; white-space: pre-wrap; position:relative; z-index:100000}pre.sf-dump .sf-dump-num{color:#a71d5d}pre.sf-dump .sf-dump-const{color:#795da3}pre.sf-dump .sf-dump-str{color:#df5000}pre.sf-dump .sf-dump-cchr{color:#222}pre.sf-dump .sf-dump-note{color:#a71d5d}pre.sf-dump .sf-dump-ref{color:#a0a0a0}pre.sf-dump .sf-dump-public{color:#795da3}pre.sf-dump .sf-dump-protected{color:#795da3}pre.sf-dump .sf-dump-private{color:#795da3}pre.sf-dump .sf-dump-meta{color:#b729d9}pre.sf-dump .sf-dump-key{color:#df5000}pre.sf-dump .sf-dump-index{color:#a71d5d}</style><pre class=sf-dump id=sf-dump-1519227052 data-indent-pad="  "><span class=sf-dump-note>array:2</span> [<samp>
  "<span class=sf-dump-key>sec_pwd</span>" => <span class=sf-dump-const>null</span>
  "<span class=sf-dump-key>money</span>" => <span class=sf-dump-const>null</span>
</samp>]
</pre><script>Sfdump("sf-dump-1519227052")</script>

github上有一个issue暂时性解决问题https://github.com/laravel/framework/issues/21808

1) Create a file called helpers.php in app/Http

2) Past the following in:

<?php 

function ddd(...$args){
    http_response_code(500);
    call_user_func_array('dd', $args);
}

3) In composer.json, in the autoload section, add "files": ["app/Http/helpers.php"]

4) Run composer dump-autoload command in terminal